Compress images to JPEG, WebP, or AVIF with quality control and target file size. Private side-by-side preview.
Drop image here or click to upload
Files stay in your browser — never uploaded
Step-by-step guide to get the most from this tool
Drop or select a PNG, JPEG, WebP, or AVIF file.
Pick JPEG, WebP, AVIF, or PNG output.
Use the slider or set a target KB size in Advanced Options.
Compare original vs compressed and download the result.
What makes this tool stand out
Modern formats for smaller files.
Auto-quality to hit a KB goal.
Compare before and after visually.
See bytes saved and percentage.
Local browser processing.
No watermarks or limits.
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Quick answers to common questions
No. Compression runs in your browser. Files never leave your device.
JPEG, WebP, AVIF, and PNG. WebP and AVIF typically produce smaller files than JPEG.
Enter a KB target and the tool auto-adjusts quality to approach that size (JPEG/WebP/AVIF).
No. Only quality/compression changes — pixel dimensions stay the same unless you use Image Resizer.
WebP for web (wide support). AVIF for smallest files (modern browsers). JPEG for maximum compatibility.
PNG is lossless — no quality slider. Use JPEG/WebP/AVIF for smaller files.
Depends on device memory. Most images under 25MB work well.
Yes. Unlimited compression with no signup.
Your data is processed entirely in your browser. Nothing is sent to any server.