Image converter
Move between JPG, PNG, WebP, AVIF, HEIC, TIFF and RAW. Input format is detected automatically.
One converter for everything. Drop in any mix of formats — Invo identifies each file by inspecting its contents rather than trusting the extension, which matters because messaging apps regularly hand you a HEIC named .jpg.
How to use it
- Add your files. Mixed formats in one batch are fine.
- Choose the output format and quality.
- Process and download, individually or as a ZIP.
Which format should you use?
- JPG — photographs, and anything being uploaded to a form. Universal support, no transparency.
- PNG — screenshots, logos, diagrams, anything needing transparency. Lossless and larger.
- WebP — websites. Around 25-30% smaller than JPG at equal quality, with transparency support, and now handled by every current browser.
- AVIF — smaller again than WebP, typically 30-50% below JPG. Encoding is slower and the decoder is a larger download, so reach for it when file size genuinely matters.
- HEIC — what your iPhone produces. Excellent compression, awkward compatibility.
- TIFF — scanners and print workflows. Chrome and Firefox cannot display TIFF natively, so converting is usually necessary just to view it.
Detection by content, not by extension
File extensions lie constantly. iPhones share HEIC files labelled .jpg; downloads arrive with the wrong suffix; renaming a file changes nothing about its contents.
Invo reads each file's magic bytes — the signature at the start that identifies the real format — and routes it to the correct decoder. If a file will not open elsewhere but works here, a mislabelled extension is usually the reason.
Transparency and background
PNG, WebP, AVIF and HEIC support transparency; JPG does not. Converting a transparent image to JPG fills the transparent areas with white. To preserve transparency, choose PNG, WebP or AVIF.
Questions
Which formats can I convert from?
JPG, PNG, WebP, GIF, BMP, TIFF, AVIF, HEIC and HEIF, plus camera RAW including CR2, CR3, NEF, ARW, DNG, RAF, ORF and RW2.
Which formats can I convert to?
JPG, PNG, WebP and AVIF.
Why is AVIF slow?
AVIF encoding is computationally heavy, and the encoder is a 3.4 MB download fetched only the first time you pick AVIF. Expect a few seconds per image.
Can I mix formats in one batch?
Yes. Each file is detected and decoded independently.
Is quality lost when converting?
Converting to PNG is lossless. JPG, WebP and AVIF re-encode with some loss, invisible at quality 85 and above.
Are my files uploaded?
No. All conversion runs in your browser.