Coda
A weekend of work, and real gaps remain.
A document that contains databases: tables with typed columns and formulas live inside pages of text, with buttons and automations that change the data from where you are reading it.
Build me a document-with-tables app for one team, not a platform. STACK - Astro with a Node adapter, SQLite via better-sqlite3 - Server-rendered pages, small islands of JavaScript for editing only THE MODEL - A doc is an ordered list of blocks: prose, heading, table - A table has typed columns: text, number, date, select, checkbox, relation to another table - A relation stores row ids, never labels, so renaming never breaks a link FORMULAS - One expression language for computed columns, evaluated on the server - Functions limited on purpose: arithmetic, dates, if, lookups across a relation, and aggregates over a filtered set - Detect and refuse circular references at save time with a readable message VIEWS - The same table shown as grid, board grouped by a select column, or calendar keyed on a date - Filters and sorts belong to the view, never to the table EDITING - Optimistic updates, but the server is the authority and rejects a stale write with the current row - Every change appended to a revision table: who, when, before, after PERMISSIONS - Per doc: viewer, editor, owner. No per-cell rules; say so in the README Include a README on the formula functions supported, the revision table, and how to export a doc as Markdown plus CSV.
What you lose
- A formula language that spans documents and tables, closer to a spreadsheet than a database
- Buttons and automations that mutate rows from inside the document
- Packs — two-way integrations that pull live data from other products into a table
- Real-time collaboration with presence, comments and per-section permissions
- The free-for-editors pricing, which is why whole teams end up inside it
If you would rather not build
- Notion — paid, the direct competitor, weaker formulas
The escape hatch
open source · no votes, no paid placement
Grist
$0Spreadsheet-database with Python formulas and granular access rules, self-hostable.
gristlabs/grist-corefree · open source
AppFlowy
$0Documents and databases in a similar shape, storing their data locally.
AppFlowy-IO/AppFlowyfree · open source
Why this verdict
our own opinion · changed only by a person
49/100
Verdict kinda at 49: tables, views and a small formula language are a real weekend, and the revision table is straightforward. Where the build stops is live collaboration and Packs — the integrations are the reason a team keeps the doc open all day.
History
tracked since 9 Aug 2026 · nothing is ever overwritten
Questions about Coda
answered from the record above
Is Coda free?
No — the plan we track is $12 a month. Pro at $12 per Doc Maker per month billed monthly, $10 annually; editors and viewers are free, which is unusual for this category.
Can you replace Coda by building your own?
ALMOST. A weekend of work, and real gaps remain. Replacement score 49 out of 100, build time a weekend. Read what you lose before you decide.
How much does Coda cost?
$12 a month on Pro — $144 a year. Recorded 9 Aug 2026.
What do you lose by replacing Coda?
A formula language that spans documents and tables, closer to a spreadsheet than a database; Buttons and automations that mutate rows from inside the document; Packs — two-way integrations that pull live data from other products into a table; Real-time collaboration with presence, comments and per-section permissions; The free-for-editors pricing, which is why whole teams end up inside it. If any of those carry weight for you, keep paying.
Is there an open-source alternative to Coda?
Yes: Grist, AppFlowy. The prompt on this page is for when you want it your way instead.
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