Developer Tool
Universal File Converter
A private, browser-based file converter. Switch between image formats (WebP, PNG, JPG), or transform data between JSON and CSV. Your files never leave your computer.
Multi-Format
Switch between Images, JSON, and CSV seamlessly in one UI.
100% Private
Your files never leave your computer. Processing is local.
Lightning Fast
No server lag. Conversions happen at the speed of your hardware.
How to use the Universal File Converter
Most online converters upload your files to a server — a privacy risk for anything sensitive. This one runs entirely in your browser, converting between image formats (WebP, PNG, JPG) and data formats (JSON, CSV) without your files ever leaving your device.
- 1Upload the file you want to convert.
- 2Choose the output format.
- 3The conversion runs locally in your browser.
- 4Download the converted file.
Frequently asked questions
What files can I convert?
You can convert between common image formats (WebP, PNG, JPG) and data formats like JSON and CSV, all in one place.
Are my files uploaded to a server?
No. Every conversion happens locally in your browser, so your files never leave your device — ideal for private or sensitive documents.
Why convert images to WebP?
WebP produces significantly smaller files than PNG or JPG at similar quality, which speeds up your pages and improves Core Web Vitals without a visible drop in quality.
Is this tool free?
Yes — convert as many files as you want for free, with no uploads and no signup.