Image Compressor
Compress images by adjusting JPEG quality. Runs entirely in your browser — nothing is uploaded.
Choose an image — it never leaves your device.
Pure browser JavaScript (HTML canvas) — no upload.
How to use this tool
- Choose an image.
- Drag the quality slider to balance size vs. quality.
- Click Download compressed.
Compress images by adjusting JPEG quality. Runs entirely in your browser — nothing is uploaded.
Frequently asked questions
- Is my image uploaded?
- No — compression happens locally via the Canvas API.