Free image compressor online.

Drop the image onto the compressor. Pick your output format (JPEG, WebP, AVIF, or PNG) and drag the quality slider. The right-hand preview re-renders live with the new file shown next to the original, and the savings counter tells you exactly how many bytes (and percent) you saved. When you're happy, hit Download. No upload, no signup, no watermark.

For email and web, 85% is the sweet spot: visually indistinguishable from the original on a phone or screen, with the file usually 3 to 5 times smaller than the source JPEG. Drop to 70% for the smallest reasonable file (still acceptable for chat and email). Stay at 90 to 95% if the image will be printed or zoomed.

JPEG is the most universally compatible (every browser, every CMS, every email client). WebP is ~25-35% smaller at equivalent quality and is supported by every modern browser, Gmail, WhatsApp, and most CMSes. AVIF is the newest and smallest (~50% smaller than JPEG, ~25% smaller than WebP) with strong 2026 browser support; some older email clients still don't render it. Pick JPEG for maximum compatibility, AVIF for maximum compression, WebP for the middle ground.

PNG is lossless, so it preserves every pixel exactly. For photographs that's overkill: PNG files are typically 5 to 10 times larger than a high-quality JPEG of the same image. Use PNG only when you need transparency or when the image has flat color regions (logos, screenshots, diagrams). For photographs, pick JPEG, WebP, or AVIF.

Yes, the canvas-based re-encoding in this tool strips the EXIF block. If you need EXIF preserved while compressing JPEG, use our image resizer with the 'Keep EXIF' toggle on. If you want EXIF gone deliberately for privacy, this compressor is the cleanest one-click way (along with our dedicated EXIF Remover).

Yes. No accounts, no daily caps, no per-file size limit, no watermark. The entire pipeline runs in your browser. We never see your image.

Yes. iPhone HEIC files decode in the browser (via heic2any) and then re-encode to your chosen output format (JPEG, WebP, AVIF, or PNG) at the chosen quality. The original HEIC EXIF doesn't survive (HEIC encoding is not part of browsers), so you'll get a clean compressed JPEG/WebP/AVIF.

The compressor keeps the original dimensions and just changes the format and quality. The image resizer also changes the pixel dimensions (longest side, exact width × height, or scale percent). Use the compressor when 'the image is the right size, just shrink the file.' Use the resizer when 'the image needs to be smaller in pixels too.'

Same idea, browser-only execution, no upload, no signup. Our angle: per-file side-by-side preview with exact bytes-saved counter, AVIF support, HEIC input, and zero account walls. Files never leave your device. Always free.