avoidwork/filesize.js

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1708 stars · 102 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

filesize.js is a lightweight, zero-dependency JavaScript library that converts byte counts into human-readable strings. It supports SI, IEC, and JEDEC unit standards, bits, BigInt, localization via the Intl API, and works in both browsers and Node.js.

Use cases

• format file sizes in bytes as human-readable strings
• display 1024 as 1 KiB using IEC standard
• convert bytes to kilobits for bandwidth display
• create reusable file size formatters with partial application
• format file sizes with locale-aware number formatting
• handle extremely large file sizes with BigInt
• get file size as structured object instead of string

When to choose

• you need reliable, dependency-free byte-to-human-readable conversion in JavaScript or TypeScript
• you need support for multiple unit standards (SI, IEC, JEDEC) or bits
• you need a tiny utility that works in browser, Node.js, and with BigInt values

When to avoid

• you need actual file system operations like reading or measuring files on disk
• your project is not JavaScript/TypeScript based
• you need formatting of units other than data sizes (e.g., durations, weights)

Facets

library · maturity stable

serialization developer-tools developer-tools files web-development browser cross-platform filesize bytes human-readable zero-dependency typescript bigint formatting nodejs

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markdown · JSON · MCP: product_card(name="avoidwork/filesize.js")