atuin vs union

atuin and union share 15 technologies: axum, sqlx-postgres, sqlx, SQLite, Postgres, Tokio, tower, Ratatui, crossterm, schemars, tracing, tracing-subscriber, OpenTelemetry, opentelemetry-otlp, and tracing-opentelemetry. Both are written in Rust.

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What they share and what sets them apart

Only in atuin

In common

unionlabs

union

The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

Rust73.7kRead on November 5, 2026, at commit 031785bWhat is union built with?

Only in union

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
atuin240,516 lines written561 code files
union468,416 lines written1,841 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
atuin1.2% of its commits signed by AIWith Claude Code
union0% of its commits signed by AIWith CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
atuinLast push November 7, 20262,555 commits32,230 stars
unionLast push July 25, 202613,299 commits73,725 stars
TestsThe files that test the code, and the share of code files a test imports.
atuin64 test files15.3% of its code files have a test that imports them
union120 test files10.4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, atuin or union?
union, with 468,416 lines written; atuin has 240,516.

The proof: unionlabs/union's code at commit 031785b

Which has more GitHub stars, atuin or union?
union, with 73,725 stars; atuin has 32,230.

The proof: unionlabs/union on GitHub

Which has more tests, atuin or union?
union, with 120 test files; atuin has 64.

The proof: unionlabs/union's code at commit 031785b

Which was updated more recently, atuin or union?
atuin: its last push was on November 7, 2026, and union's on July 25, 2026.

The proof: atuinsh/atuin's commits on GitHub

Which has more commits signed by AI, atuin or union?
atuin: an AI signed 1.2% of its commits, with Claude Code.

The proof: the commits each tool signed in atuinsh/atuin

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