AsyncBanana/microdiff

Health v2 · maintenance only

Adoption not part of the score

3865 stars · 84 forks observed · 2026-08-28

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

Microdiff is a tiny (<1kb), zero-dependency JavaScript library for deep comparison of objects and arrays, returning a list of CREATE, REMOVE, and CHANGE operations. It is significantly faster than most other deep diff libraries and ships with full TypeScript support.

Use cases

• compare two JSON objects and get the list of changes
• detect what properties were added, removed, or changed between two states
• diff nested objects and arrays in a React or Node app
• track state changes for undo/redo or sync features
• compare form data before and after edits
• deep equality checking with detailed change paths

When to choose

• you need a fast, tiny deep diff with no dependencies
• you want TypeScript types built in
• you need Deno, Node, Bun, or browser support
• you need cyclical reference handling

When to avoid

• you need text/string diffing rather than object diffing
• you need patch application or merge semantics, not just change detection
• you need diffing of very large or streaming datasets

Facets

library · maturity stable

serialization developer-tools developer-tools web-development bun browser cross-platform diff deep-comparison zero-dependency typescript object-diff array-diff algorithms nodejs deno

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