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wtf is ubyte?

sergiobenitez/ubyte — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2023-10-02

★ 36RustAudience · developerComplexity · 2/5DormantSetup · easy

TL;DR

ubyte is a Rust library for working with file sizes and data measurements using readable expressions like 1.megabytes() instead of raw byte numbers, with safe conversion, formatting, and parsing.

Mindmap

mindmap
  root((repo))
    What it does
      Readable byte sizes
      Unit conversion
      Safe overflow capping
    Tech stack
      Rust
      no_std support
      const everything
    Use cases
      File uploaders
      System monitors
      Upload limit checks
    Features
      Decimal units
      Binary units
      Parsing and formatting

Code map

Detail Auto

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filefunction / class

Why would anyone build with this?

REASON 1

Write file upload validation code that checks size limits using readable expressions like 10.megabytes() instead of raw numbers

REASON 2

Build a disk usage or system monitor tool that displays sizes as formatted strings like 7.06GB or 7.898GiB

REASON 3

Parse user-entered size strings like 10 KiB or 1.5 MiB directly into typed byte values in a Rust backend service

REASON 4

Use byte-unit math in a no_std embedded project where the full Rust standard library isn't available

What's in the stack?

Rust

How it stacks up

sergiobenitez/ubyteadysec/clawbotelliotgao2/handsets
Stars363735
LanguageRustRustRust
Last pushed2023-10-02——
MaintenanceDormant——
Setup difficultyeasymoderateeasy
Complexity2/53/53/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min

Yoink these prompts

Prompt 1
Show me how to use the ubyte crate to define a file upload size limit of 10 megabytes in Rust.
Prompt 2
Write Rust code using ubyte to parse a string like '1.5 MiB' from user input into a byte value.
Prompt 3
How do I format a byte size from ubyte as a human-readable string like '7.06GB' for a system monitor tool?

Frequently asked questions

wtf is ubyte?

ubyte is a Rust library for working with file sizes and data measurements using readable expressions like 1.megabytes() instead of raw byte numbers, with safe conversion, formatting, and parsing.

What language is ubyte written in?

Mainly Rust. The stack also includes Rust.

Is ubyte actively maintained?

Dormant — no commits in 2+ years (last push 2023-10-02).

How hard is ubyte to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is ubyte for?

Mainly developer.

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