explain.dalibo.com
PostgreSQL execution plan visualizer
Visualizing and understanding PostgreSQL EXPLAIN plans made easy.
For best results, use EXPLAIN (ANALYZE, COSTS, VERBOSE, BUFFERS, FORMAT JSON)
psql users can export the plan to a file using:
psql -XqAt -f explain.sql > analyze.json
Submitted plan is not posted nor stored until you explicitely click the share button.