EXPLAIN Plan Visualizer | Postgres EXPLAIN ANALYZE Analyzer

Postgres EXPLAIN ANALYZE visualizer shows a color-coded plan tree with per-node self time, row estimate misses, disk spills, and slow sequential scans. Free, no signup. Designed specifically for developers and professionals, this free online analyzer runs entirely in your browser to process tasks quickly and securely. Enjoy unlimited usage with no data tracking and no registration required.

Also known as: explain analyze visualizer · postgres explain plan visualizer · postgresql query plan analyzer online · visualize explain analyze output free · analyze postgres slow query plan · explain plan reader for postgres · query plan tree viewer

sql and database tools

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analyzers

EXPLAIN Output Input

Plan Tree

Your query plan will appear here

Run EXPLAIN (ANALYZE, BUFFERS) in psql, paste the output, and click Visualize Plan.

About EXPLAIN Plan Visualizer

Paste a PostgreSQL EXPLAIN ANALYZE plan and get a color-coded node tree with per-node self time, row counts, and the specific reasons a query is slow.

Key Features

Reads both the psql text plan and EXPLAIN (FORMAT JSON), then shows every node with its own self time excluding children, so the real hotspot stands out
Flags the classics automatically: sequential scans over large tables, row estimates off by 10x or more, sorts and hashes spilling to disk, and filters that discard most of what they read
Works with plain EXPLAIN too - without ANALYZE timings the bars fall back to each node's share of total cost

Use Cases

Find which node in a slow query actually burns the time before adding an index
Check whether the planner's row estimates match reality after a data load or a schema change
Share a readable breakdown of a production query plan in a pull request or incident review

Related Keywords

explain analyze visualizer

postgres explain plan visualizer

postgresql query plan analyzer

explain plan reader online

analyze postgres slow query

visualize explain analyze output

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

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Frequently asked questions

What is EXPLAIN Plan Visualizer used for?

Postgres EXPLAIN ANALYZE visualizer shows a color-coded plan tree with per-node self time, row estimate misses, disk spills, and slow sequential scans. Free, no signup.

Is EXPLAIN Plan Visualizer free to use?

Yes. EXPLAIN Plan Visualizer is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use EXPLAIN Plan Visualizer?

No. EXPLAIN Plan Visualizer works immediately in your browser with no signup, login, or email address required.

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