Privacy first. Traditional converters make you upload files to their servers — trusting strangers with your photos and documents. We do the opposite: decoding and conversion run locally on your device with open web technologies. Nothing to leak, nothing to breach.

Truly free: no accounts, no subscriptions, no watermarks, no daily limits.
Fast: no upload queues or server processing — conversion starts the instant you drop a file.
Works everywhere: any modern browser on desktop or mobile, no installation.
Quality conscious: adjustable JPEG quality, lossless PNG output, and multi-size favicon generation done right.

How it works

Pick a converter above for the format pair you need.

Drop your file into the converter — it never leaves your device.

Download the result instantly. That's the whole process.

Frequently Asked Questions

Is ConvertNest really free?

Yes — every converter is free with no accounts, no watermarks, and no conversion limits. The site is supported by advertising.

Are my files uploaded to your servers?

No. All conversions run 100% inside your browser using JavaScript. Your files never leave your device, which makes conversion faster and completely private.

Do I need to install anything?

Nothing. Everything works in any modern web browser on Windows, Mac, Linux, Android, and iOS.

Which formats do you support?

Currently: HEIC, AVIF, WebP, TIFF, BMP, SVG, and PNG inputs, with JPG, PNG, and ICO outputs. New converters are added regularly — suggest one via our contact page.