Handsum: Ultra-Compact LQIP Image Format for Faster Web
A fixed-size LQIP image format for fast-loading web placeholders.
★ 4.0 / 5 iKeep scoreScreenshots
Quick facts
Overview
Handsum is a custom Low Quality Image Placeholder (LQIP) format designed for ultra-small file sizes (48-147 bytes) and fast loading. It uses DCT-based compression similar to JPEG but with a simpler implementation, making it ideal for inline web images and database storage.
Getting started with Handsum: An LQIP Image File Format
- Review documentationVisit the official Handsum blog post to understand the format's specifications and use cases.
- Download decoderObtain the Wasm-compatible decoder or implement your own based on the open-source specifications.
- Integrate into projectAdd Handsum image generation and decoding to your web project for ultra-fast placeholder loading.
Pricing
| Plan | Price | Note |
|---|---|---|
| Open-source | Free | — |
💡 Indicative pricing — check the official rates at nigeltao.github.io · Updated 7/19/2026
Key features
- Fixed-size output (48-147 bytes)
- DCT-based compression like JPEG
- Designed for inline web use
- Simpler implementation than JPEG
- Wasm-compatible decoder available
Pros
- Extremely small file size
- Fast decoding performance
- Simpler than JPEG for learning
- Fixed size ideal for database storage
Cons
- Lower quality than some alternatives
- Limited adoption currently
- Primarily for placeholder use
Use cases
- Web performance optimization
- Database-stored thumbnails
- Progressive image loading
- Low-bandwidth applications
The verdict
Handsum offers a clever solution for developers needing predictable, ultra-compact image placeholders, though it's best suited for specific use cases where file size trumps image quality.
✓ Who should use it
Web developers optimizing for fastest possible initial page loads with progressive image enhancement.
✕ Who should skip it
Those needing high-quality thumbnails or working with complex color gradients.
Categories
Community
- Community ↗Community community for users, support and discussion
Great for
Frequently asked questions
Is Handsum: An LQIP Image File Format free?
Handsum: An LQIP Image File Format is free to use.
What is Handsum: An LQIP Image File Format best for?
Developers needing ultra-compact image placeholders
Does Handsum: An LQIP Image File Format have an API?
No, Handsum: An LQIP Image File Format does not offer a public API.
Can I self-host Handsum: An LQIP Image File Format?
Yes, Handsum: An LQIP Image File Format can be self-hosted.
Who should use Handsum: An LQIP Image File Format?
Web developers optimizing for fastest possible initial page loads with progressive image enhancement.
Reviews 4.0 ★ · 1 review
Handsum stands out for its elegant simplicity and predictable performance characteristics. While it won't replace full-resolution image formats, it excels at its core purpose: providing ultra-compact placeholders that load instantly. The fixed byte size is particularly clever for database applications, and the open-source implementation makes it easy to integrate. Developers working on performance-critical web applications will appreciate how Handsum minimizes network overhead while maintaining reasonable visual fidelity during loading. The accompanying comparison visuals help demonstrate where it shines versus alternatives like Blurhash and Thumbhash.
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