woltapp/blurhash

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

17069 stars · 379 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

BlurHash is a compact algorithm and multi-language library that encodes an image into a short 20-30 character string representing a blurred placeholder. The string can be stored alongside image URLs and decoded on clients to show a placeholder while the real image loads.

Use cases

• show blurred image placeholders while images load
• encode images to compact placeholder strings on the backend
• avoid storing thumbnail images in the database
• decode blurhash strings into placeholder images on mobile apps
• add image placeholders as a field in JSON responses
• improve perceived loading performance in image-heavy UIs

When to choose

• you need tiny image placeholders that fit in JSON or a database column
• you want a well-known, MIT-licensed algorithm with implementations in many languages
• you want smooth image loading experiences on web or mobile clients

When to avoid

• you need actual thumbnails with recognizable detail rather than blurred color gradients
• you need animated or high-fidelity previews
• your platform has no available BlurHash implementation and porting is impractical

Facets

library · maturity stable

image-processing serialization image-processing web-development frontend mobile-development cross-platform c jvm python blurhash image-placeholder lazy-loading encoder decoder swift typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="woltapp/blurhash")