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Yes! SQLite handles concurrent writes fine in WAL mode.¹²

hmm are you sure? i keep getting "database is locked"

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Searched again6 sources

SQLite locks the whole file on every write. Use Postgres.³⁴

so which one is it??

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sqlite.orgofficial docs

Latest Release: Version 3.53.1 (2026-05-05). SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine.

4 months old

sqlite.orgofficial docs

Latest Release: Version 3.53.4 (2026-07-24). SQLite is a C-language library that implements a small, fast, self-contained, high-reliability, full-featured, SQL database engine.

just now

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Yes! SQLite handles concurrent writes fine in WAL mode.¹²

We show the evidence.

One writer at a time. The rest wait their turn.

SQLite's own docs, updated May 2025, allow one writer at a time. The rest queue up. Bert Hubert, an independent expert, explained in February 2025 why you still get "database is locked" with a busy timeout set: a transaction that will write has to start as a write, or with BEGIN IMMEDIATE. The go-sqlite3 thread with the same error is ten years old: several goroutines writing at once, in 2016. Turso, which sells a hosted rewrite of SQLite, announced in August 2026 that its engine takes several writers at once, as an early preview.

Official docs16 months oldSQLite's own docs
SQLite supports an unlimited number of simultaneous readers, but it will only allow one writer at any instant in time.
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Expert19 months oldBert Hubert's blog
If you know you are going to write in a transaction, start it with a write, or use BEGIN IMMEDIATE.
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Forum10 years old, likely outdatedGitHub issue thread
We have a little app which has multiple goroutines all running queries and it often fails with "database is locked" :(
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Vendor1 month oldSells the hosted database it announcesEarly preview, not production
Turso Cloud databases can run transactions with BEGIN CONCURRENT, which allows multiple writers to proceed in parallel instead of serializing behind one write lock.
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Does SQLite handle concurrent writes?
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- sqlite concurrent writes
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One writer at a time. The rest wait their turn.
Synthesized directly from SQLite's official docs, independent benchmarks, and resolved bug reports.