Which format should I choose?

WebP for the best web compression (25-35% smaller than JPG at same quality, supported in all modern browsers). JPG for maximum compatibility (every program ever made supports it) and photos. PNG for logos, icons, screenshots, anything with transparency or sharp edges. AVIF for cutting-edge sites prioritizing size (50% smaller than JPG, supported in Chrome/Firefox/Safari but not all older systems). For most websites, WebP with JPG fallback (via picture element) is the sweet spot.

Will I lose quality converting between formats?

JPG → JPG: yes, every save introduces compression artifacts (avoid re-saving). PNG → JPG: yes, lossy compression introduced. PNG → PNG: no loss. JPG → PNG: no loss but file bloats (PNG is lossless, can't undo JPG artifacts). PNG → WebP (lossy): visual quality stays similar at 80-90% quality, file ~30% smaller. PNG → WebP (lossless): file ~25% smaller, no quality loss. Best practice: keep originals in PNG or RAW format; convert to JPG/WebP only for delivery.

Why is my converted PNG file larger than the JPG?

PNG uses lossless compression — every pixel preserved exactly. JPG uses lossy compression — discards visual information humans don't notice. Photos with smooth gradients (skies, skin tones) compress dramatically with JPG; PNG can't match that on photos. Use cases: photos → JPG (or WebP). Screenshots, logos, icons, illustrations → PNG. Mixed content: WebP often wins both.

Can I batch-convert multiple images?

Yes — drop multiple files into the upload area. Each is converted with the same settings. For very large batches (50+ images), browser performance may slow; consider a desktop tool (XnConvert, ImageMagick, IrfanView) for 100+ images. The conversion still happens locally; nothing is uploaded.

What's AVIF and should I use it?

AVIF (AV1 Image File Format) is a newer format with ~50% better compression than JPG at equal quality. Browser support: Chrome 85+, Firefox 93+, Safari 16+. The catch: encoding is slow (5-10x slower than JPG/WebP), and some older social platforms don't accept AVIF uploads. For 2026, AVIF is production-ready but WebP is more universally supported. Use AVIF for static sites where build-time encoding is acceptable; stick with WebP for user-uploaded content.

Is my image uploaded to a server?

No. The conversion uses the Canvas API in your browser. Files never leave your device. You can verify with browser DevTools Network tab — no outgoing requests during conversion.

File & Format Converters · Free tool

Image Format Converter

Swap between JPG, PNG, and WebP formats instantly in your browser for quick edits before sharing. A free, online tool with no upload required and no sign-up needed.

Updated June 2026

Drop a file or click to choose

JPG, PNG, WebP, GIF, BMP — anything your browser can decode.

Found this useful?Email Buy Me a Coffee

What it does

A free image format converter for JPG, PNG, and WebP. Drop a file, pick the output format, tweak the quality slider if needed, and download. Everything runs on your device — the image is never uploaded anywhere, which matters for screenshots, private photos, or sensitive work.

Quick guidance: WebP is smaller than JPG at the same quality and now works everywhere except very old browsers. PNG is the right choice when you need lossless output or transparency. JPG is a safe fallback — if in doubt and the image isn’t a logo or screenshot, JPG at 85% quality is hard to beat.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/image-format-converter" width="100%" height="720" frameborder="0" loading="lazy" title="Image Format Converter" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>

Embed docs →

How to use it

Drop or select your source image.
Pick the target format: WebP, JPG, or PNG.
For lossy formats, adjust the quality slider (85–90% is a sweet spot).
Click Convert, then Download.

When to use this tool

Converting screenshots from PNG to JPG for smaller email attachments.
Migrating image library to WebP for site speed.
Adapting iPhone HEIC images to JPG for upload to systems that reject HEIC.
Producing JPG variants of PNG logos for old systems that mishandle PNG transparency.

When not to use it

Lossless archival of original photos — keep raw or original PNG.
Already-correct format — converting PNG → JPG → PNG just adds compression artifacts.
Bulk batch conversion of 1000+ images — use desktop tools (XnConvert, ImageMagick) instead.

Common use cases

Photographer converts 200 PNG screen captures to JPG, saving 75% disk space.
Web developer converts blog hero images to WebP, dropping average page weight from 1.2MB to 800KB.
Designer converts iPhone HEIC photo to JPG to attach in a corporate email.
Marketer converts product PNG to JPG for an old e-commerce platform that doesn’t support PNG.

Frequently asked questions

Which format should I choose?: WebP for the best web compression (25-35% smaller than JPG at same quality, supported in all modern browsers). JPG for maximum compatibility (every program ever made supports it) and photos. PNG for logos, icons, screenshots, anything with transparency or sharp edges. AVIF for cutting-edge sites prioritizing size (50% smaller than JPG, supported in Chrome/Firefox/Safari but not all older systems). For most websites, WebP with JPG fallback (via picture element) is the sweet spot.
Will I lose quality converting between formats?: JPG → JPG: yes, every save introduces compression artifacts (avoid re-saving). PNG → JPG: yes, lossy compression introduced. PNG → PNG: no loss. JPG → PNG: no loss but file bloats (PNG is lossless, can't undo JPG artifacts). PNG → WebP (lossy): visual quality stays similar at 80-90% quality, file ~30% smaller. PNG → WebP (lossless): file ~25% smaller, no quality loss. Best practice: keep originals in PNG or RAW format; convert to JPG/WebP only for delivery.
Why is my converted PNG file larger than the JPG?: PNG uses lossless compression — every pixel preserved exactly. JPG uses lossy compression — discards visual information humans don't notice. Photos with smooth gradients (skies, skin tones) compress dramatically with JPG; PNG can't match that on photos. Use cases: photos → JPG (or WebP). Screenshots, logos, icons, illustrations → PNG. Mixed content: WebP often wins both.
Can I batch-convert multiple images?: Yes — drop multiple files into the upload area. Each is converted with the same settings. For very large batches (50+ images), browser performance may slow; consider a desktop tool (XnConvert, ImageMagick, IrfanView) for 100+ images. The conversion still happens locally; nothing is uploaded.
What's AVIF and should I use it?: AVIF (AV1 Image File Format) is a newer format with ~50% better compression than JPG at equal quality. Browser support: Chrome 85+, Firefox 93+, Safari 16+. The catch: encoding is slow (5-10x slower than JPG/WebP), and some older social platforms don't accept AVIF uploads. For 2026, AVIF is production-ready but WebP is more universally supported. Use AVIF for static sites where build-time encoding is acceptable; stick with WebP for user-uploaded content.
Is my image uploaded to a server?: No. The conversion uses the Canvas API in your browser. Files never leave your device. You can verify with browser DevTools Network tab — no outgoing requests during conversion.

Learn more

Explore more file & format converters tools

100% in-browserNo downloadsNo sign-upMalware-freeHow we keep this safe →