FFmpeg is used for video, audio, and some image conversions. Native FFmpeg is faster than browser-based WASM processing. View FFmpeg License
Welcome to cnvrt.tools! 🎉
This is an offline file converter - your files never leave your device!
Drag & drop or click to select files
Configure output formats in settings ⚙️
Convert multiple files (mixed types supported) at once
Supports images, videos, audio, and documents with a file size limit over 1gb.
💧 Droplet mode for quick specific conversions via URLs (/png, /mp4, /mp3, etc).
After the first time loading the converter, it will work offline.
Report an Issue / Send Feedback
Please describe the issue you encountered or any feedback you have. If reporting a bug or formatting issue, include steps to reproduce if possible and any errors you see.
Note: There are limits to the file sizes and types that can be converted locally in your browser. Please see the help page for more information.
Settings
100%
0
4
15 FPS
Audio Settings
Local document conversions are in beta. If you encounter formatting issues or general errors, please check help for more information and next steps.
Print Dialog: Perfect rendering, smaller files, allows setting of page size and margins. Requires user interaction per PDF.
Direct PDF: Automatic generation, larger files, may have rendering differences
1 inch = 72 points
Base64: Images embedded directly in document (larger file size, self-contained)
Placeholders: Images replaced with placeholder text (smaller file size, external images)
Route: pi0 / pi1
Route: pt0 / pt1
Embed PDF pages as images: Converts all PDF pages to base64 images (preserves exact layout, larger file size)
Only embed pages without text: Only converts image-only pages to base64 images, keeps text pages as extracted text (mixed approach)
Route: rh0 / rh1
Route: rf0 / rf1
These cleanup options improve readability by removing page headers/footers repeated across pages during PDF→HTML/Markdown/Text extraction.
Converting to:
Drag and drop your files
or
Converting files: 0 / 0
This is a client-side file conversion service. No files are uploaded to any server - all processing happens directly in your browser.
This is provided as-is without any guarantee, but is non-destructive by nature (original files will remain unchanged). Enjoy!
Minimal analytics and errors are collected solely to track site usage and identify issues and are not shared with any third parties.
Media conversions powered by ffmpeg WASM. Document conversions are powered by various open source libraries. Read more about our Privacy Policy & Terms of Service.