| What it does | Free online image compressor for PNG, JPEG, WebP and AVIF with an agent-ready CLI
| Free online converter to turn photos to grayscale with multiple methods, brightness and contrast controls, and browser-based processing
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| Stage | Not given
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| Founded | Not given
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| Pricing model | Freemium
| Free
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| Pricing | Web compression is free for everyone. Free plan: $0, includes 100 CLI/API images per month. Pro plan: $9/month, includes 5,000 CLI/API images per month.
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| Key features | - Compress up to 100 images per batch, 8 MB each
- Supports JPG, PNG, WebP and AVIF formats
- Same format out, dimensions untouched
- Images deleted immediately after compression
- No account or sign-up required for web compression
- ZIP download for batch results
- Compression starts immediately on file upload
- Shows before and after file sizes
- Open source CLI published on npm
- No telemetry or data collection
| - Four grayscale conversion methods: Weighted, Average, Maximum, Minimum
- Adjustable brightness and contrast controls from -100 to +100
- Real-time preview of adjustments
- Support for JPG, PNG, and WebP formats
- Browser-based processing with no server upload
- Download as PNG to preserve transparency
- No watermarks or signup required
- Weighted method uses ITU-R BT.709 industry standard luminance
- Multiple related tools: Monochrome, Desaturate, Sepia, Vintage, and effects
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| What makes it different | - Image compression tuned for near-invisible quality loss while maintaining visual integrity
- Completely free for web browser use with no account needed
- Images deleted immediately and never used for training or other purposes
- Open source CLI that can be audited for security and privacy
- Works with AI agents and coding assistants through agent-ready CLI
| - Four different grayscale algorithms to choose the right output for your photo
- Privacy-first approach with all processing in browser and no image uploads
- Practical focus on specific workflows rather than generic one-click effects
- Educational guides explaining technical concepts and when to use each method
- Instant results without upload or download wait times
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 25 ● no change since last check | 43 ● no change since last check |
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| Trust Flow (Majestic) | 8 | 10 |
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| Citation Flow (Majestic) | 26 | 33 |
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| Referring domains (Majestic) | 66 | 109 |
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PiPic
Grayscale Image