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crystal vs novu

crystal and novu share 5 technologies: Express, Hono, H3, React, and jsonwebtoken. Both are written in TypeScript.

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What they share and what sets them apart

graphile

crystal

🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!

TypeScript12.9kRead on November 10, 2026, at commit 1c037b4What is crystal built with?

Only in crystal

In common

novuhq

novu

The open-source communication infrastructure for agents and products

TypeScript40.3kRead on November 6, 2026, at commit e0d76b7What is novu built with?

Only in novu

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
crystal878,730 lines written536 code files
novu1,214,443 lines written8,224 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.
crystal0% of its commits signed by AIWith GitHub Copilot
novu8.2% of its commits signed by AIWith Cursor, Claude Code, Devin, GitHub Copilot, and CodeRabbit
ActivityFrom GitHub and its history, on the day SeeRepo read it.
crystalLast push November 9, 202615,796 commits12,934 stars
novuLast push November 6, 202616,756 commits40,294 stars
TestsThe files that test the code, and the share of code files a test imports.
crystal250 test files5.6% of its code files have a test that imports them
novu1,282 test files16.3% of its code files have a test that imports them

Frequently asked questions

Which is bigger, crystal or novu?
novu, with 1,214,443 lines written; crystal has 878,730.

The proof: novuhq/novu's code at commit e0d76b7

Which has more GitHub stars, crystal or novu?
novu, with 40,294 stars; crystal has 12,934.

The proof: novuhq/novu on GitHub

Which has more tests, crystal or novu?
novu, with 1,282 test files; crystal has 250.

The proof: novuhq/novu's code at commit e0d76b7

Which was updated more recently, crystal or novu?
crystal: its last push was on November 9, 2026, and novu's on November 6, 2026.

The proof: graphile/crystal's commits on GitHub

Which has more commits signed by AI, crystal or novu?
novu: an AI signed 8.2% of its commits, with Cursor, Claude Code, Devin, GitHub Copilot, and CodeRabbit.

The proof: the commits each tool signed in novuhq/novu

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