PostgreSQL Array Literal Builder and Parser
Turn a list of values or a JSON array into a correctly quoted PostgreSQL array literal and the equivalent ARRAY[...] constructor, ready for INSERT, = ANY() and && queries. Elements with spaces, commas, quotes, backslashes, braces or the word NULL are quoted exactly the way Postgres does it. Switch to Parse mode to paste an existing '{...}' value: the tool splits it into elements, shows it as JSON, and reports the same malformed array literal details Postgres would. Everything runs in your browser.
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Chat2DB is an AI-powered SQL client for Windows, macOS and Linux. Write SQL in natural language, format and optimize queries automatically, and manage MySQL, PostgreSQL, Oracle and 20+ other databases in one workspace.
How to use
- Pick Build or Parse mode and the element type (text, integer, uuid, jsonb and so on).
- In Build mode, paste one value per line or a JSON array (nested arrays become multidimensional); in Parse mode, paste a '{...}' literal.
- Click Run to get the quoted literal, ARRAY constructor and example SQL, or the parsed elements and any error details.
Frequently asked questions
How do I write a PostgreSQL array literal?
Wrap the elements in braces and separate them with commas, for example '{1,2,3}' or '{red,green}'. Put double quotes around any element that is empty, contains a comma, space, brace, double quote or backslash, or is the word NULL you want as text; inside quotes, escape " and \ with a backslash. An unquoted NULL is a SQL NULL.
What causes "malformed array literal" in Postgres?
The input string is not in array syntax. Common causes are passing a JSON array like [1,2] or a bare comma list like 1,2 where Postgres expects '{1,2}', unbalanced quotes or braces, a trailing comma, and sub-arrays of different lengths. The DETAIL line tells you which rule failed; this tool reproduces it.
Can I run and test array queries without the command line?
Yes. Chat2DB connects to PostgreSQL, runs queries with array columns and shows the results in a grid, and its AI assistant can write ANY(), unnest() and array_agg() queries from a plain-English prompt. Get it at chat2db.ai/download or open the web version.
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