Immediate feedback
Size changes are paired with a rendered preview at the selected quality.
Free Tool
Image Compressor
Reduce image file size with full control over quality. Choose JPEG or WebP output and adjust the quality slider to find the sweet spot between size and visual fidelity. Everything runs locally in your browser.
JPEG & WebP outputQuality sliderSide-by-side previewNo media uploadFree to use
Watch the workflow
Reduce image file size with JPEG or WebP quality control — see before/after comparison
Drop any image to compress
PNG · JPG · WebP · AVIF
Tips
- JPEG is best for photos — 70–85% quality is usually indistinguishable from the original
- WebP produces smaller files than JPEG at the same quality for most images
- WebP also supports transparency — useful for compressed versions of removed-bg images
- For web use, aim for under 200 kB for hero images and under 100 kB for thumbnails
How it works
- Drop a PNG, JPG, or WebP image
- Choose JPEG or WebP output format and adjust the quality slider (0–100)
- The before/after panel shows file size reduction — download when happy with the result
Frequently asked questions
What quality setting should I use?
For web use, 75–85 strikes the right balance — visually near-identical to the original but 30–70% smaller. Go lower only for thumbnails where file size matters more than fine detail.
Is WebP always better than JPEG?
WebP typically produces 25–35% smaller files than JPEG at the same perceptual quality. Use JPEG only if you need maximum compatibility with very old software or browsers.
What is the maximum image size I can compress?
There is no hard size limit — the canvas API processes whatever the browser can decode. Very large images (>20 MP) may take a few seconds on mobile devices.
Related tools
Quality budget
Find the smallest file you can actually accept
A controllable quality pass and side-by-side preview make compression a visual decision rather than a blind preset.
Quality + bytes
Two linked controls
Original retained
Every adjustment encodes from the source instead of recompressing the last result.
Delivery formats
Choose JPEG or WebP according to compatibility, alpha needs, and target weight.
Know before you process: Repeatedly compressing an already-lossy image compounds artifacts; always begin from the best available original.
Ready to try it?
Free, private, no signup.
Compress an image →