AI Session Viewer

Overview

AI Session Viewer renders a raw AI chat session export as a clean, readable transcript. Import a session file and view it as chat bubbles, a compact log, or a document, then edit the content, redact sensitive details, and export the result to PDF. Handy for saving a conversation, cleaning it up for a write-up, or sharing a spicy exchange with someone else.

Everything runs locally in a single HTML file — nothing is uploaded and your sessions never leave your machine.

What files are supported?

Drop or import any of these session formats:

.json — the viewer’s native export format (single object with a messages array).
.jsonl — raw session logs from Claude Code (Anthropic CLI).
.jsonl — raw session logs from Gemini Antigravity IDE.

The viewer auto-detects the format and normalizes everything into a unified shape, so they all render the same way.

How do I find my session files?

Easier route: just ask the agent itself — e.g. “export this session as .jsonl in the project root.” Claude Code and the Gemini Antigravity IDE both have file-system access to their own session logs and can copy the current conversation out for you in one step.

Claude Code stores each session as a JSONL log under your home directory:

~/.claude/projects/<sanitized-project-path>/<session-uuid>.jsonl

Gemini Antigravity IDE writes session logs to its own data directory, typically:

~/.gemini/antigravity-ide/… (path varies by version)

Copy the .jsonl file out (or drag it directly into this page) — nothing else needs to be set up.

What can I do with a loaded session?

Switch themes — Bubble, Compact, and Article layouts in the sidebar.
Edit any message — click the text and start typing. Changes stay in the tab until you save.
Format text — select text inside a message and a floating toolbar appears with bold, italic, underline, and inline code. Bold, italic, and underline also respond to ⌘B / ⌘I / ⌘U. Each button lights up when the selection already has that format; click again to remove it.
Highlight & obfuscate — the same toolbar can add a yellow highlight (⌘⇧H) or blur out sensitive text (⌘⇧O). Click a blurred span to reveal it; toggle the button off to clear the mark. All formatting is preserved when you save or export the session.
Delete messages — hover a message and use the trash button.
Filter content — hide session context, agent thoughts, or tool activity.
Customize the header — rename the title, add a custom subtitle, toggle the subtitle, model, and date, or hide the header entirely.
Rename participants — set custom labels for “User” and “Agent”.
Save the edited session — export to a new .json file (never overwrites the original).
Export to PDF — uses your browser’s print dialog.
Replace the session — drop a new file anywhere on the main area while a session is loaded.

Is my data private?

This viewer is a single static HTML page. Your session never leaves your browser. There is no server, no upload, no telemetry, and no analytics.

Files you drop in are parsed entirely in-memory by JavaScript running in your tab.
No network requests are made with your data — the only external resources are CSS/JS libraries (Tailwind, Marked, Lucide, fonts) loaded once from public CDNs at page load.
localStorage is used only for UI preferences (theme, header settings, custom labels) — never for session content.
Closing the tab discards the loaded session from memory.

Tips

Press Esc to close this dialog.
The sun/moon toggle in the top bar follows your system appearance by default (Auto); a small accent dot on the lit icon means you’ve pinned a mode instead. Click either icon to pin Light or Dark, click the lit icon again to return to Auto, or press L to flip light/dark.
Edited text is preserved in “Save session” export as plain text (markdown formatting is not re-encoded).
The viewer’s normalized format is what gets exported — not the original tool’s raw schema. Re-importing the exported file works, but feeding it back into Claude Code or the Gemini IDE will not.

Drop an AI session, see it shine.