Temporary browser data
Results use local Blob URLs. They are revoked when you remove or clear results, and the session ends when the tab closes.
Fast, private, local-first
Private file conversion in your browser
Convert and compress everyday files from your browser, with local processing first and a clean offline version for work you want to keep fully on your computer.
- Local first
- Image work runs on your device.
- No account needed
- Free tools stay one click away.
- Free, no signup
- 30 MB cap on the website. The local version runs without ads.
Original
8.4 MB
Compressed
2.1 MB
Try it now
Private file tools
Use the tabs to switch tools. The drop zone and settings update to match the selected file type.
PDF tools use a browser PDF library and do not upload your files.
Browsers can decode common formats like MP3, WAV, OGG, and sometimes FLAC. MP3, FLAC, OGG, and M4A use bundled local encoders.
WebM uses browser recording when available. MP4, MOV, MKV, and M4V use bundled local FFmpeg.
Converted files
Your converted files will appear here.
Tools
Everyday formats, privacy-first
Convert common files in your browser, with local encoders included for formats that need extra help.
IMG
Images
JPG, PNG, WebP, and QOI conversion, plus raw RGBA export with width, height, and resolution presets.
Available now Image details → PDFPDFs
Merge selected PDFs or split one PDF into separate page downloads.
Available now PDF details → VIDVideo
Compress MP4, MOV, MKV, WebM, and M4V inputs with browser-supported outputs, bundled local FFmpeg fallbacks, and resolution presets.
Available now Video details → MP3Audio formats
Convert browser-supported MP3, OGG, WAV, FLAC, and related audio files to WAV, MP3, and other local encodable outputs.
Available now Audio details →How it works
No conversion server receives your file
The selected file is decoded and transformed in browser memory. Images use Canvas and a built-in QOI codec; PDFs use a local copy of pdf-lib; audio uses Web Audio and bundled encoders; video can use MediaRecorder or FFmpeg WebAssembly.
Honest memory limits
A compressed file can expand to many times its size while decoded. The 30 MB web check does not guarantee every file will fit on every device.
Known trade-offs
Re-encoding can lose quality and metadata, and input compatibility varies by browser. Each tool page documents its exact behavior.
Privacy
Your files stay in your hands
Conversion runs in browser memory. The site still loads ordinary page assets and advertising, but the converter has no upload request for your selected file.
No surprise uploads
The converter is built to process files on your device whenever the browser can handle the format.
Ads are web-only
The website may show clearly labeled ads to keep the tool free. The downloaded local version does not include ad scripts.
No file tracking
No analytics package is currently installed. Hosting and advertising requests are separate from your selected file bytes.
Offline option
Download the local version
Download the ZIP and run the converter from your computer. It uses the same local-first tools without website ads.
Download local ZIPArticles
Guides to everyday file formats
Practical explainers for choosing image, audio, video, and PDF formats — written for people who want to pick the right option and move on.
Images
WebP vs JPG vs PNG: choosing the right image format
Each format has a job. We break down where each one wins, where each one loses, and how to pick without overthinking it.
Read article → PDFsHow to compress a PDF without losing quality
What actually makes a PDF big, what compression really does to text and images, and how to get a small file that still looks sharp.
Read article → AudioMP3 vs FLAC vs OGG: an audio format guide
Lossy, lossless, free, proprietary. Here is how the common audio formats differ and which one to pick for music, podcasts, and voice notes.
Read article →Customer support
Help users before they worry
Keep customer support practical: format status, privacy notes, ad questions, and a way to report files that fail locally.