plannotator vs pr-lens

plannotator is much bigger: 9.5k stars against 2.1k. Over the days we have tracked them plannotator moved +32.4% and pr-lens +186.6%, so pr-lens is growing faster right now.

pr-lens leads on noise control and model freedom. plannotator does not take any axis by a clear margin.

Stars and commit dates come from our own daily tracking. The six axes are read off each project's documentation by our review pipeline, so they describe what a project says about itself, not what we measured in its code.

Where they stand today

A local, browser-based review surface that plugs directly into many agent hooks so you can annotate plans, diffs, and HTML and send structured feedback back to the agent.

Stars
9.5k
Tracked growth
+32.4%
Maturity
●●●●●
Last commit
5h ago
Language
TypeScript
License
Apache-2.0
Cost to run
Free, self-hosted; external agent API keys or accounts may be required

Generates animated architecture and data-flow diagrams that visualize a PR’s blast radius and step-by-step walkthroughs directly inside the pull request.

Stars
2.1k
Tracked growth
+186.6%
Maturity
●●●●●
Last commit
2d ago
Language
TypeScript
License
MIT
Cost to run
Free for open source; otherwise your API key
0%+187%90 tracked days
backnotprop/plannotatorcoldteadotai/pr-lens

Six axes, head to head

Each axis runs 0 to 5. The label under a score is what that project's own docs claim, not a category average.

Axisplannotatorpr-lens
Context depth
How much of your codebase it sees before it answers: the open diff, the diff plus related files, or the whole repository.
●●●●●
Diff-focused
●●●●●
Diff + related files
Noise control
How it keeps output volume down — severity thresholds, deduplication, incremental runs over new commits only.
●●●●●
No noise controls
●●●●●
Configurable filters
Customization
How far it bends to your team: custom rules, prompts, style guides, per-path config.
●●●●●
Config file options
●●●●●
Config file options
Privacy
Whether your code stays on your own infrastructure: fully local, self-hostable, or cloud API only.
●●●●●
Self-hostable
●●●●●
Cloud API key
Model freedom
Whether you can point it at any provider, or it is wired to one.
●●●●●
Multiple providers
●●●●●
Bring-your-own key
Setup ease
What it takes to get a first useful run out of it.
●●●●●
One-command install
●●●●●
One-click App

Which one to pick

Pick plannotator if…

Local and agent-integrated: pick Plannotator when you want a local browser UI to review agent plans and code diffs and to send feedback directly to the agent.

Runs in cli, ide, coding-agent-plugin, web-app. Works with openai, anthropic, gemini, other-fixed.

Pick pr-lens if…

Visual-first — install the GitHub App to get animated architecture and data-flow diagrams posted automatically to every PR so you can understand a change before reading its code.

  • Noise control: Configurable filters (3/5 against 1/5)
  • Model freedom: Bring-your-own key (5/5 against 3/5)
Runs in pr-bot, github-action, ci, cli, coding-agent-plugin, web-app. Works with byok, openai, gemini.

What people want from each one

Questions people ask

Is plannotator better than pr-lens?

pr-lens leads on noise control and model freedom. plannotator does not take any axis by a clear margin. plannotator is worth picking when local and agent-integrated: pick Plannotator when you want a local browser UI to review agent plans and code diffs and to send feedback directly to the agent.

Which of plannotator and pr-lens keeps my code private?

plannotator: Self-hostable (4/5). pr-lens: Cloud API key (3/5).

What does each one cost to run?

plannotator: Free, self-hosted; external agent API keys or accounts may be required. pr-lens: Free for open source; otherwise your API key.

Full profiles: backnotprop/plannotator and coldteadotai/pr-lens. Everything else in Code review agents.