The table that stays in the tab

A MIT Airtable-style table that lives in IndexedDB, with 100 templates, until the assistant needs an OpenRouter key.

Category
Productivity
Who it is for
Someone who keeps a working list in Airtable and wants a copy they can open offline.
Possible model
Open source
Difficulty
Medium
Inspired by
RowTabs · RowTabs
Original launch
Watch the launch · Oct 18, 2026

Difficulty is an editorial estimate of technical and operational complexity, not a score.

Startup idea analysis by Startup Ideas. Last reviewed Oct 18, 2026. How we read a launch.

The startup idea

Shrey posted RowTabs on October 18. A free, open-source, offline Airtable alternative. Editable Notion-style tables, 100 ready-made templates, an AI assistant, and everything stays in the browser. He says he built it with Claude from one prompt, reusing OpenNote as the shell. The repository is shreyvijayvargiya/rowtabs. The readme says MIT. There is no backend. Tables sit in IndexedDB. The limits printed there are 200 tables per browser, 2,000 rows per table, 40 columns, 2 MB for one file in a cell, about 20 MB for one table, and a 15 MB import. The assistant is optional and wants an OpenRouter key pasted into the panel. The readme says that key stays in the browser. The model request does not. The same readme mentions MCP. The post does not. This page did not create a table.

The opportunity is the table a person can still open with the network off. A smaller product is one template, the caps on the screen, and a clear line that the assistant is a paid call. The post says offline. The tables are. The assistant is not.

Do not sell the assistant as local. The readme sends it to OpenRouter. Do not hide the 2,000-row cap.

The problem

The working table is in someone else's cloud, and the export is the only copy you own.

Who would pay for this?

Primary
Someone who keeps a working list in Airtable and wants a copy they can open offline.
Secondary
A person who will paste a model key and still expect Keep and Undo.
Early adopter
One table under the row cap, with the key line visible.

How could it make money?

Possible models. Nothing here is a claim about what RowTabs charges.

  • No price on the app. MIT.
  • The assistant spends an OpenRouter key the user brings.
  • The post does not name a hosted plan.

What would the MVP look like?

  1. One editable table in IndexedDB.
  2. The caps, including 2,000 rows.
  3. A template from the set of 100.
  4. The line that the assistant leaves the browser.

How to validate the idea

  • Ask five people to edit a table with the wifi off.
  • If they needed the assistant to finish, it was not the offline product.
  • Do not raise the row cap until someone hits it.

How to differentiate

  • The file is the browser database, not an account.
  • Delete asks first, and a change can be undone.
  • The caps are printed.
  • Do not become another hosted base with a chat box.

Original product launch

This launch is inspiration and evidence that someone shipped, not a partnership. The idea above is our reading of the broader opportunity. RowTabs did not write it.

Product
RowTabs
Source
RowTabs
Film
RowTabs, the assistant that leaves
Posted
Oct 18, 2026 · 3:38
Open original post

Product that inspired this idea

Shrey's post says RowTabs is a free, open-source, offline Airtable alternative. Editable Notion-style tables, 100 ready-made templates, an AI assistant, and everything stays in the browser. He built it with Claude from one prompt, on the shell of his notes app. The readme says MIT, tables in IndexedDB, and no backend. The caps are 200 tables, 2,000 rows, 40 columns, 2 MB in a cell, about 20 MB a table, and a 15 MB import. The assistant needs an OpenRouter key, and the readme says that key stays in the browser. The call to the model does not. The readme also says MCP. The post does not mention the key, the caps, or MCP. This page did not open a table.

Posted by @treyvijay. Watch the original launch. No separate product site is listed unless the post itself is the source.

  • tables
  • browser

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