Tab manager — tools.voiddo/tabsnap vs OneTab
Both deal with many open tabs. OneTab collapses tabs to free memory and restore them later. tabsnap captures tabs as portable structured data — markdown, plain text, JSON, or README — for documentation, sharing, or CLI pipeline use.
tools.voiddo/tabsnap
- Exports tab list as markdown, plain text, JSON, or README in 1 click
- Output is portable — paste into Slack, Notion, GitHub, scripts
- Does not close or rearrange your tabs — session unchanged
- JSON schema supports multi-window output:
{windows:[{tabs:[]}]} - npm CLI companion (@v0idd0/tabsnap) for processing tab JSON in scripts
- Zero dependencies, MIT licensed
- Available: Chrome, Firefox, Edge
OneTab
- Collapses all open tabs into one OneTab page — frees browser memory
- Tabs can be restored individually or all at once
- Groups of tabs can be named and starred
- Export as web page — publishes a sharable URL (server-stored)
- Lock groups to prevent accidental clearing
- Closes tabs: browser session is modified
- Available: Chrome, Firefox
Feature comparison
| Feature | tools.voiddo/tabsnap | OneTab |
|---|---|---|
| Export to markdown | ✓ | ✗ |
| Export to plain text | ✓ | ✓ (via OneTab page copy) |
| Export to JSON | ✓ structured schema | ✗ |
| Export to README format | ✓ | ✗ |
| Closes/collapses tabs | ✗ session unchanged | ✓ |
| Frees browser memory | ✗ | ✓ |
| Restore tabs later | ✗ (export only) | ✓ |
| Named tab groups | — | ✓ |
| CLI companion | ✓ @v0idd0/tabsnap | ✗ |
| Scriptable output | ✓ JSON pipe-friendly | ✗ |
| Share without server | ✓ paste anywhere | ✗ OneTab server required |
| Multi-window JSON export | ✓ | ✗ |
| Chrome support | ✓ | ✓ |
| Firefox support | ✓ | ✓ |
| Edge support | ✓ | limited |
| Zero external dependencies | ✓ | ✗ server dependency for share |
| Free to use | ✓ | ✓ |
Comparison based on publicly observable behavior as of 2026-05. OneTab is purpose-built for browser memory management and session restoration. tabsnap is purpose-built for exporting tab context as portable structured data for documentation and scripting use.
FAQ
Can I use tabsnap and OneTab together?
Yes — they are complementary. A common workflow: use tabsnap to capture a markdown snapshot of your research tabs (for your notes), then use OneTab to collapse the tabs and free memory. You keep the structured record in your notes and recover RAM — both in one session.
How do I use the tabsnap CLI to process tab JSON?
Install the CLI with
npm install -g @v0idd0/tabsnap. Then pipe a tabsnap JSON export: cat tabs.json | tabsnap --format markdown or cat tabs.json | tabsnap --format readme. The CLI accepts the array format ([{title,url},...]), the tabsnap extension format ({tabs:[]}), or the multi-window format ({windows:[{tabs:[]}]}). Output goes to stdout so you can redirect it to any file or pipeline.Does tabsnap store my browsing data anywhere?
No. tabsnap reads your open tabs in-browser and copies the formatted output to your clipboard. No data leaves your machine — there is no server, no sync, and no account. The tabsnap CLI tool runs locally. OneTab's "share as web page" feature uploads your tab list to OneTab's servers to generate a URL — that is the only case where tab data leaves the browser in either tool.
Can I paste tabsnap output into a GitHub issue?
Yes. The markdown format produces a proper bulleted list of links with titles — ready to paste into any Markdown-rendering surface: GitHub issues, pull request descriptions, Notion pages, Confluence docs, Obsidian notes, Slack messages, or Discord channels. OneTab's export is a plain URL list without rich markdown formatting.
When should I use OneTab instead of tabsnap?
Use OneTab when your primary goal is freeing browser memory — you have 60+ tabs open and your machine is slowing down. OneTab collapses tabs into a managed list you can restore. Use tabsnap when you want to capture what was open for documentation or sharing without disrupting your browser session. The two tools solve different problems and work well together.
Try tabsnap
Capture your open tabs as markdown, plain text, JSON, or README in one click. Available for Chrome, Firefox, and Edge. CLI companion available via npm.
OneTab and related trademarks belong to their respective owners. This comparison reflects publicly observable tool behavior as of 2026-05.