Image Compressor
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
How to Use
Step-by-step guide to get the most from this tool
- 1
Upload image
Drop or select a PNG, JPEG, WebP, or AVIF file.
- 2
Choose format
Pick JPEG, WebP, AVIF, or PNG output.
- 3
Adjust quality
Use the slider or set a target KB size in Advanced Options.
- 4
Download
Compare original vs compressed and download the result.
Features
What makes this tool stand out
WebP & AVIF
Modern formats for smaller files.
Target size
Auto-quality to hit a KB goal.
Side-by-side
Compare before and after visually.
Size stats
See bytes saved and percentage.
Private
Local browser processing.
Free
No watermarks or limits.
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Frequently Asked Questions
Quick answers to common questions
Are my images uploaded to a server?+
No. Compression runs in your browser. Files never leave your device.
What formats can I export?+
JPEG, WebP, AVIF, and PNG. WebP and AVIF typically produce smaller files than JPEG.
What is target file size?+
Enter a KB target and the tool auto-adjusts quality to approach that size (JPEG/WebP/AVIF).
Will compression reduce image dimensions?+
No. Only quality/compression changes — pixel dimensions stay the same unless you use Image Resizer.
Which format should I choose?+
WebP for web (wide support). AVIF for smallest files (modern browsers). JPEG for maximum compatibility.
Does PNG compression use quality?+
PNG is lossless — no quality slider. Use JPEG/WebP/AVIF for smaller files.
Is there a file size limit?+
Depends on device memory. Most images under 25MB work well.
Is this tool free?+
Yes. Unlimited compression with no signup.