Image Compressor
Compress and optimize images with advanced algorithms and format conversion. The best image compression tool for developers.
Image Compressor optimizes assets for the web without compromising quality. Tune quality, resize, and convert formats (JPEG/PNG/WebP/AVIF) with instant previews so you can ship fast pages confidently.
Key features
- Single image upload with drag & drop
- Basic compression with quality control
- JPEG and PNG support
- Before/after comparison
- Download compressed image
- File size reduction display
- Image metadata display
- Help panel with examples and shortcuts
How it works
Compression runs locally using Canvas/WebCodecs where available to keep data private and interactions snappy. Batch processing and ZIP export (premium) streamline multi‑asset pipelines.
Step-by-step usage
- Drop an image or select files (premium for batch).
- Adjust quality and format; preview before/after.
- Resize if needed and download the optimized output.
Examples
Convert PNG to WebP
Drop a PNG, select WebP, set quality to 80, and compare sizes before downloading.
Resize hero image
Reduce width from 2400px to 1600px, keep aspect ratio, and export as JPEG at quality 75.
(Premium) Batch optimize
Select a folder of images, apply a preset, and download a ZIP with optimized assets.
Security & privacy
Where applicable, processing runs locally in your browser. Inputs are not logged or sent to external services. Premium features inside the app use Supabase Auth to protect access. For sensitive work, prefer local files and avoid sharing secrets. Outputs include copy and download actions to minimize manual transcription errors.
Accessibility
The tool supports keyboard navigation and screen readers with ARIA labels and descriptive messages. Focus order is logical, and error messages use human‑readable language. These docs maintain proper heading hierarchy and color contrast, and the app version includes skip links and live regions where appropriate.
Limitations & disclaimers
Some advanced capabilities are available only in the DevToolsHub app with a premium plan. The static documentation does not execute code or store inputs. Where behaviors differ across runtimes (browsers, servers, language engines), treat outputs as representative and verify against your production stack when correctness is critical.
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