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Home Converters Bench

Converters Bench

28 tools for converting between any file format.

Audio to MP3, video to WebM, image to PNG, document to HTML, ebook to text | the Converters Bench handles format switching across every file type. Some converters use the ffmpeg engine for audio and video; others work instantly with your browser's built-in capabilities.

28 toolsMulti-format supportRuns on your device

Every media type

Convert audio, video, and images reliably without uploading anything to a server.

Documents & text

Extract text from eBooks and turn Markdown into clean HTML documents.

System & archives

Peek inside fonts or repack ZIP files entirely inside your browser tab.

Tools in this bench

28 tools · click any card to open it

Audio Converter

Convert between MP3, WAV, OGG, AAC, and FLAC.

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Document Converter

Convert plain text or Markdown files to HTML.

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Ebook Converter

Extract text content from an EPUB ebook.

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Video Converter

Convert between MP4, WebM, AVI, and MOV.

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Font Converter

Extract font metadata and file information.

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Archive Extractor

Extract all files from a ZIP archive.

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Image Converter

Convert between JPG, PNG, and WebP.

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Archive Converter

Repack a ZIP with different compression settings.

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HEIC to JPG

Convert HEIC image to JPG.

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HEIC to PNG

Convert HEIC image to PNG.

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WebP to JPG

Convert WebP image to JPG.

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WebP to PNG

Convert WebP image to PNG.

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SVG to PNG

Convert SVG image to PNG.

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SVG to JPG

Convert SVG image to JPG.

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GIF to MP4

Convert GIF to MP4 video.

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GIF to WebP

Convert GIF to animated WebP.

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MOV to MP4

Convert MOV video to MP4.

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MKV to MP4

Convert MKV video to MP4.

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AVI to MP4

Convert AVI video to MP4.

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WAV to MP3

Convert WAV audio to MP3.

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FLAC to MP3

Convert FLAC audio to MP3.

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M4A to MP3

Convert M4A audio to MP3.

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OGG to MP3

Convert OGG audio to MP3.

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DOCX to TXT

Convert DOCX document to plain text.

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DOCX to HTML

Convert DOCX document to HTML.

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XLSX to CSV

Convert XLSX spreadsheet to CSV.

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CSV to XLSX

Convert CSV to XLSX spreadsheet.

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PPTX to JPG

Convert PPTX slides to JPG.

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Audio BenchText Bench
🔒 100% browser-based · No uploads · No sign-up · No watermarks

Complete Guide to Mergio Converters

Audio Converter

Convert between MP3, WAV, OGG, AAC, and FLAC using FFmpeg compiled to WebAssembly. Perfect for making music tracks compatible with older devices or saving space.

How to convert audio formats:

  1. Select your file and drag it into the Audio Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Audio Converter?

Because Audio Converter runs entirely in your browser using FFmpeg WASM, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Audio Converter?

Absolutely. Your files never leave your device. The Audio Converter works locally via 100% browser-based technology.

Document Converter

Quickly turn plain text or Markdown files into HTML format. Great for web developers or writers who need to prepare text for online publishing.

How to convert text to HTML:

  1. Select your file and drag it into the Document Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Document Converter?

Because Document Converter runs entirely in your browser using client-side processing, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Document Converter?

Absolutely. Your files never leave your device. The Document Converter works locally via 100% browser-based technology.

Ebook Converter

Extract readable text content from an EPUB ebook using JSZip. This helps when you want to read a book in a basic text editor or extract quotes.

How to extract text from EPUB:

  1. Select your file and drag it into the Ebook Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Ebook Converter?

Because Ebook Converter runs entirely in your browser using JSZip, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Ebook Converter?

Absolutely. Your files never leave your device. The Ebook Converter works locally via 100% browser-based technology.

Video Converter

Switch video files between MP4, WebM, AVI, and MOV using WebAssembly FFmpeg. Essential for ensuring your video plays on the web or specific media players.

How to change video format:

  1. Select your file and drag it into the Video Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Video Converter?

Because Video Converter runs entirely in your browser using FFmpeg WebAssembly, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Video Converter?

Absolutely. Your files never leave your device. The Video Converter works locally via 100% browser-based technology.

Font Converter

Extract metadata and file information from TTF, OTF, and WOFF font files using a DataView binary parser. Ideal for web designers verifying font properties.

How to extract font details:

  1. Select your file and drag it into the Font Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Font Converter?

Because Font Converter runs entirely in your browser using DataView binary parser, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Font Converter?

Absolutely. Your files never leave your device. The Font Converter works locally via 100% browser-based technology.

Archive Extractor

Unzip and extract all files from a ZIP archive directly in your browser. A convenient way to access compressed files without installing software.

How to extract ZIP archives:

  1. Select your file and drag it into the Archive Extractor dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Archive Extractor?

Because Archive Extractor runs entirely in your browser using JSZip, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Archive Extractor?

Absolutely. Your files never leave your device. The Archive Extractor works locally via 100% browser-based technology.

Image Converter

Convert photos and graphics between JPG, PNG, and WebP using the HTML5 Canvas API. Essential for optimizing images for web performance.

How to convert images:

  1. Select your file and drag it into the Image Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Image Converter?

Because Image Converter runs entirely in your browser using HTML5 Canvas API, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Image Converter?

Absolutely. Your files never leave your device. The Image Converter works locally via 100% browser-based technology.

Archive Converter

Repack a ZIP archive with different compression settings entirely inside your browser tab using JSZip. Useful for optimizing archive size.

How to repack ZIP files:

  1. Select your file and drag it into the Archive Converter dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for Archive Converter?

Because Archive Converter runs entirely in your browser using JSZip repack, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the Archive Converter?

Absolutely. Your files never leave your device. The Archive Converter works locally via 100% browser-based technology.

HEIC to JPG

Transform Apple HEIC photos into standard JPG format for broad compatibility. Crucial for sharing iPhone photos with Windows users or non-Apple devices.

How to convert HEIC to JPG:

  1. Select your file and drag it into the HEIC to JPG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for HEIC to JPG?

Because HEIC to JPG runs entirely in your browser using Canvas rendering, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the HEIC to JPG?

Absolutely. Your files never leave your device. The HEIC to JPG works locally via 100% browser-based technology.

HEIC to PNG

Turn high-efficiency HEIC images into lossless PNG files. Helpful when you need a widely supported format without losing quality.

How to convert HEIC to PNG:

  1. Select your file and drag it into the HEIC to PNG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for HEIC to PNG?

Because HEIC to PNG runs entirely in your browser using client-side Canvas, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the HEIC to PNG?

Absolutely. Your files never leave your device. The HEIC to PNG works locally via 100% browser-based technology.

WebP to JPG

Change modern WebP images back into classic JPG format. Necessary when uploading to older platforms that do not support WebP.

How to convert WebP to JPG:

  1. Select your file and drag it into the WebP to JPG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for WebP to JPG?

Because WebP to JPG runs entirely in your browser using Canvas API, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the WebP to JPG?

Absolutely. Your files never leave your device. The WebP to JPG works locally via 100% browser-based technology.

WebP to PNG

Convert WebP images to standard PNGs while preserving transparency. Perfect for using web graphics in desktop editing software.

How to convert WebP to PNG:

  1. Select your file and drag it into the WebP to PNG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for WebP to PNG?

Because WebP to PNG runs entirely in your browser using Canvas pixel manipulation, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the WebP to PNG?

Absolutely. Your files never leave your device. The WebP to PNG works locally via 100% browser-based technology.

SVG to PNG

Render vector SVG graphics into raster PNG images at 2x resolution. Great for generating fallbacks or using vector assets in raster-only contexts.

How to convert SVG to PNG:

  1. Select your file and drag it into the SVG to PNG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for SVG to PNG?

Because SVG to PNG runs entirely in your browser using Canvas 2x rendering, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the SVG to PNG?

Absolutely. Your files never leave your device. The SVG to PNG works locally via 100% browser-based technology.

SVG to JPG

Convert SVG vector files into standard JPGs with a solid white background. Ideal for inserting logos or icons into standard documents.

How to convert SVG to JPG:

  1. Select your file and drag it into the SVG to JPG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for SVG to JPG?

Because SVG to JPG runs entirely in your browser using Canvas white background, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the SVG to JPG?

Absolutely. Your files never leave your device. The SVG to JPG works locally via 100% browser-based technology.

GIF to MP4

Turn heavy animated GIFs into lightweight MP4 video files using FFmpeg faststart. Massively reduces file size for faster page loading.

How to convert GIF to MP4:

  1. Select your file and drag it into the GIF to MP4 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for GIF to MP4?

Because GIF to MP4 runs entirely in your browser using FFmpeg faststart, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the GIF to MP4?

Absolutely. Your files never leave your device. The GIF to MP4 works locally via 100% browser-based technology.

GIF to WebP

Transform classic GIFs into animated WebP files for modern browsers. Improves performance and loading speed on the web.

How to convert GIF to animated WebP:

  1. Select your file and drag it into the GIF to WebP dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for GIF to WebP?

Because GIF to WebP runs entirely in your browser using FFmpeg animated WebP, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the GIF to WebP?

Absolutely. Your files never leave your device. The GIF to WebP works locally via 100% browser-based technology.

MOV to MP4

Convert Apple MOV videos into standard MP4 format using FFmpeg libx264. Ensures playback compatibility on practically any device.

How to convert MOV to MP4:

  1. Select your file and drag it into the MOV to MP4 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for MOV to MP4?

Because MOV to MP4 runs entirely in your browser using FFmpeg libx264, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the MOV to MP4?

Absolutely. Your files never leave your device. The MOV to MP4 works locally via 100% browser-based technology.

MKV to MP4

Change MKV video containers to standard MP4 files without losing quality. Required for playing videos natively in most web browsers.

How to convert MKV to MP4:

  1. Select your file and drag it into the MKV to MP4 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for MKV to MP4?

Because MKV to MP4 runs entirely in your browser using FFmpeg container switch, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the MKV to MP4?

Absolutely. Your files never leave your device. The MKV to MP4 works locally via 100% browser-based technology.

AVI to MP4

Modernize old AVI video files by converting them to MP4 format. Crucial for sharing legacy videos on modern social media platforms.

How to convert AVI to MP4:

  1. Select your file and drag it into the AVI to MP4 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for AVI to MP4?

Because AVI to MP4 runs entirely in your browser using FFmpeg processing, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the AVI to MP4?

Absolutely. Your files never leave your device. The AVI to MP4 works locally via 100% browser-based technology.

WAV to MP3

Compress large, lossless WAV audio into standard MP3 format using FFmpeg libmp3lame. Reduces file size significantly for easy sharing.

How to convert WAV to MP3:

  1. Select your file and drag it into the WAV to MP3 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for WAV to MP3?

Because WAV to MP3 runs entirely in your browser using FFmpeg libmp3lame, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the WAV to MP3?

Absolutely. Your files never leave your device. The WAV to MP3 works locally via 100% browser-based technology.

FLAC to MP3

Convert high-fidelity FLAC tracks to MP3 format for mobile listening. Useful when space is limited on your portable devices.

How to convert FLAC to MP3:

  1. Select your file and drag it into the FLAC to MP3 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for FLAC to MP3?

Because FLAC to MP3 runs entirely in your browser using FFmpeg processing, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the FLAC to MP3?

Absolutely. Your files never leave your device. The FLAC to MP3 works locally via 100% browser-based technology.

M4A to MP3

Change Apple M4A audio files into universally supported MP3s. Great for playing iTunes music in other media players.

How to convert M4A to MP3:

  1. Select your file and drag it into the M4A to MP3 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for M4A to MP3?

Because M4A to MP3 runs entirely in your browser using FFmpeg libmp3lame, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the M4A to MP3?

Absolutely. Your files never leave your device. The M4A to MP3 works locally via 100% browser-based technology.

OGG to MP3

Convert OGG Vorbis audio files to standard MP3. Helpful when you need maximum compatibility with hardware audio players.

How to convert OGG to MP3:

  1. Select your file and drag it into the OGG to MP3 dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for OGG to MP3?

Because OGG to MP3 runs entirely in your browser using FFmpeg, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the OGG to MP3?

Absolutely. Your files never leave your device. The OGG to MP3 works locally via 100% browser-based technology.

DOCX to TXT

Extract unformatted plain text from Microsoft Word DOCX files using JSZip XML parsing. Perfect for feeding text into other applications or scripts.

How to convert DOCX to text:

  1. Select your file and drag it into the DOCX to TXT dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for DOCX to TXT?

Because DOCX to TXT runs entirely in your browser using JSZip XML extraction, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the DOCX to TXT?

Absolutely. Your files never leave your device. The DOCX to TXT works locally via 100% browser-based technology.

DOCX to HTML

Turn Microsoft Word documents into HTML code right in your browser. A lifesaver for quickly moving document content to a website.

How to convert DOCX to HTML:

  1. Select your file and drag it into the DOCX to HTML dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for DOCX to HTML?

Because DOCX to HTML runs entirely in your browser using JSZip XML rendering, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the DOCX to HTML?

Absolutely. Your files never leave your device. The DOCX to HTML works locally via 100% browser-based technology.

XLSX to CSV

Extract data from Excel XLSX spreadsheets into standard CSV format. Essential for importing data into databases or other software tools.

How to convert XLSX to CSV:

  1. Select your file and drag it into the XLSX to CSV dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for XLSX to CSV?

Because XLSX to CSV runs entirely in your browser using JSZip XML and shared strings, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the XLSX to CSV?

Absolutely. Your files never leave your device. The XLSX to CSV works locally via 100% browser-based technology.

CSV to XLSX

Build a full OpenXML Excel spreadsheet from a simple CSV file. Great for sharing tabular data in a universally recognized format.

How to convert CSV to Excel:

  1. Select your file and drag it into the CSV to XLSX dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for CSV to XLSX?

Because CSV to XLSX runs entirely in your browser using JSZip full OpenXML build, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the CSV to XLSX?

Absolutely. Your files never leave your device. The CSV to XLSX works locally via 100% browser-based technology.

PPTX to JPG

Extract slides from a PowerPoint PPTX file and save them as JPG images. Useful for sharing presentations where PowerPoint is not installed.

How to extract JPGs from PPTX:

  1. Select your file and drag it into the PPTX to JPG dropzone.
  2. Adjust any necessary output options (if applicable).
  3. Click "Run Conversion" to process the file instantly.
  4. Download the resulting file directly to your device.
Pro Tip: All processing is done locally. No accounts, no uploads, and no watermarks!
Is there a file size limit for PPTX to JPG?

Because PPTX to JPG runs entirely in your browser using JSZip media extraction, very large files might cause slower processing or run out of memory depending on your device specs, but there is no hard cap imposed by our servers.

Is my data secure when using the PPTX to JPG?

Absolutely. Your files never leave your device. The PPTX to JPG works locally via 100% browser-based technology.