Convert PostgreSQL backup to SQLite

Upload a .backup or .dump file and get back a SQLite file. Types are preserved rather than flattened to text. Free, no registration, up to 10MB.

Click to upload or drag and drop

CSV, Excel, SQLite, SQL, DBF (max 10 MB)

How your data is typed in SQLite

Generated from the converter's own SQLite type mapping — this is what it actually emits, not an example.

Your dataSQLite type
Whole numberBIGINT
Decimal (money)NUMERIC(10,2)
Floating pointREAL
True / falseBOOLEAN
DateDATE
Date and timeTIMESTAMP
Short textTEXT
Long textTEXT
Binary dataBLOB

Working from a PostgreSQL backup

A PostgreSQL backup is not one thing. pg_dump can write plain SQL, a compressed custom-format archive or a tar archive, and all three routinely end up carrying the same .dump or .backup extension.

  • The first five bytes decide: PGDMP means an archive, which is unpacked with pg_restore, and anything else is treated as plain SQL. The extension is never trusted for this.
  • pg_restore is run with --file=- to print SQL to a pipe, so your backup is converted without ever being restored into a live PostgreSQL server: nothing connects to a database and nothing is created.
  • The directory format, pg_dump -Fd, is a folder rather than a file and cannot be uploaded. Re-dump it as -Fc or as plain SQL.

What the .sqlite file looks like inside

The output here is a real database rather than a script, so the interesting question is not how to load it but what SQLite did with the types on the way in. Its storage classes are looser than the declarations the file ends up carrying.

  • Names are carried over exactly as they were, with none of the sanitising the script targets apply: a table called Sales Report keeps its space and a column called Order ID keeps its own, so your queries have to quote them.
  • Underneath the declared types sit only five storage classes, and NUMERIC affinity - what a decimal column gets - is the loosest of them: it normalises inserted text to whatever a plain INTEGER or REAL column would hold. The precision and scale in the schema are for a human reading it, not a guarantee SQLite enforces on the bytes; the Writing notes below cover what that means for money specifically.
  • Declared type and stored type are different things here: a BOOLEAN column holds the integers 1 and 0, and a DATE column holds ISO text, because those are the storage classes SQLite actually has. Every client reads them back the same way.

Reading PostgreSQL backup

  • Reads pg_dump custom-format archives (.backup, .dump) — pgAdmin's default backup option — as well as plain SQL dumps.
  • Data written as COPY blocks is read, not just INSERT statements. COPY is pg_dump's default, so a reader that only understands INSERT returns your tables with none of their rows.
  • Primary keys declared by a later ALTER TABLE, which is how pg_dump writes them, are preserved.

Writing SQLite

  • Columns get real declared types rather than everything being TEXT.
  • Primary keys and NOT NULL constraints are preserved.
  • A money column is declared NUMERIC(10,2), but that declaration does not stop SQLite’s own numeric affinity from converting the inserted value into a float once it lands, so 19.99 can come back with a rounding tail. Pick the DuckDB target instead when the exact decimal has to survive.

What you get

A ZIP containing database.sqlite. If anything about your data needed a judgement call, a _warnings.txt explains it.

Questions

Is converting PostgreSQL backup to SQLite free?
Yes. Files up to 10MB convert free with no account. There is a limit of five conversions per day per IP address.
Will my PostgreSQL backup data keep its types in SQLite?
Yes — that is the point. Whole numbers, decimals, dates and booleans are mapped to real SQLite types rather than everything becoming text. The mapping table above shows exactly what you get.
Do you store my file?
No. The file is written to a temporary directory, converted, and the directory is deleted as soon as your download has been sent.

This conversion, under other names

Convert PostgreSQL backup to something else

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