Your team ships 20 PRs a day.
How many did you actually understand?

LLM-generated code is flooding your review queue. You're approving PRs you haven't fully read. PR Explainer fixes this.

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auth.ts — PR #142: Add OAuth PKCE flow
const verifier = generateCodeVerifier();
const encoder = new TextEncoder();
const data = encoder.encode(verifier);
const hash = await crypto.subtle.digest("SHA-256", data);
const challenge = base64UrlEncode(hash);
const params = new URLSearchParams({
code_challenge: challenge,
code_challenge_method: "S256",
});
1/3

How it works

Three steps to actually understanding a PR

1

Open a PR

Any PR, any size. Run "Explain PR" from the command palette.

2

Listen and follow

A voice walks you through each change while the relevant lines light up. Pause, skip, or rewind.

3

Review with confidence

Actually understand what you're approving. Export as video with captions for the rest of the team.

Features

What you get

Playback

Hit play and listen

The narration walks through each change while the relevant lines light up. No context switching, no re-reading diffs.

Export

Drop a video in the PR

Export tours as MP4 with captions. Reviewers watch the walkthrough before diving into the diff.

Detail Levels

Brief, standard, or detailed

Quick 30-second overview or a thorough file-by-file breakdown. You pick how deep to go.

Smart Caching

Instant replays

Tours are cached by content hash. Revisit a PR and it plays back instantly — no regeneration, no waiting.

Multiple Providers

Your models, your choice

Claude, GPT, Gemini — use whichever LLM you prefer. Hosted mode picks the best available; local mode uses your own API keys.

Pricing

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Local Mode

Free
Forever
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  • Multiple voices (OpenAI, ElevenLabs)
  • Runs entirely on your machine
  • Tour quality depends on your model
Install Extension

Hosted Free

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No LLM subscription required
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Hosted Pro

Coming Soon
Pricing TBD
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  • Premium voices — full ElevenLabs library
  • Video themes — light, dark, branded
  • Higher quality video export (1080p)
  • Markdown & PDF export
  • PR description generator
  • Faster generation
  • Priority support
  • Team features (planned)

See it in action

Watch it work

Demo video coming soon

Stop rubber-stamping PRs

Take back control of code review. Understand every change before you hit approve.

Install Extension