Are my images uploaded to a server?
No. All conversion happens locally in your browser, so your files never leave your device — unlike upload-based converter sites.
Free Online Image Converter
Convert HEIC, WebP, PNG, JPG, BMP, SVG and AVIF images to any format you need — in batch, right in your browser. No upload, no watermark, no signup.
Frequently asked questions
How do I convert HEIC photos from my iPhone?
Just drop the .heic files in. The first HEIC conversion loads a small decoder in your browser (a few seconds), then converts to JPG or PNG right away.
Will transparency be preserved?
PNG, WebP and ICO keep transparency. JPG doesn't support it, so transparent areas are filled with white automatically.
Can I make a favicon from a PNG?
Yes — choose ICO as the output format. CutFast packs multiple icon sizes (16×16, 32×32, 48×48 and more) into a single .ico file ready for your website.
Is there a file size or count limit?
No hard limits. Everything runs on your device, so if your browser can open the images, CutFast can convert them — even large batches.