Read your agent transcripts, like a conversation.
Paste or upload a JSONL session from your agent, such as Codex or Claude Code. Everything runs in your browser — nothing leaves the page.
Tip: drop a
.jsonl file anywhere on this page, or press ⌘/Ctrl + Enter to render.
About
A lightweight, client-side viewer for coding-agent session logs.
Point it at a Codex session.jsonl or a Claude Code
projects/*.jsonl transcript and it renders the run
as a readable conversation.
What gets rendered
user
assistant
tool / shell
thinking
system
- Auto-detects the Codex vs. Claude Code JSONL layout.
- Pairs tool invocations with their outputs (shell commands, file edits, sub-agents).
- Collapses long outputs behind a disclosure so the timeline stays scannable.
- Header toggles to hide thinking, system prompts, or low-signal meta events.
Privacy
The transcript never leaves your browser. There's no server, no analytics, no network call beyond loading the fonts at first visit. You can save this page and use it offline.
How to use it
- Paste JSONL into the textarea, or drag a
.jsonlfile onto the page. - Press ⌘/Ctrl + Enter, or click Render.
- Use the filters in the header to dial the noise floor up or down.