File format conversion
Convert inside your browser: nothing uploaded, nothing queued, no copy left behind.
- runs locally
- no upload
- no signup
Drop files here, or click to choose
Batch selection supported. You can also paste files (Ctrl+V / Cmd+V).
Queue
Kept on this device for 24 hours
Converted files stay in this device’s browser and are deleted after 24 hours. They never reach the server and are not shared with other sites or devices.
Belongs to this address and this browser only: other module subdomains, devices or browser profiles cannot see it.
Results above 64 MB are not stored here — download those right away.
Nothing kept right now.
Supported conversions
| From | To |
|---|
Everything runs locally. More formats are added over time.
Popular conversions
- PNG → JPG
- JPG → PNG
- HEIC → JPG
- image → PDF
- PDF → JPG
- JPG → WebP
- SVG → PNG
- CSV → JSON
- JSON → CSV
- Markdown → HTML
- HTML → text
- text → HTML
- MP3 → WAV
Other modules
Questions
Are my files uploaded?
No. Conversion uses the decoding and encoding built into your browser, and nothing is sent to the server. Open the Network panel in devtools to check for yourself.
Why is there no signup?
The server only serves a static page; it never touches your files. Without accounts there is nothing to log in to.
Can it handle batches?
Yes. Drop a batch, pick a target per file, then download individually or as a single zip.
What quality should I use?
The default 90 already saves a lot without visible loss. Use 95+ for archival, 75–85 for web images.
Is the original modified?
No. The original stays as it is; the result downloads as a new file with the target extension.