Save cleanup context
Keep the raw payload, formatting state, and cleanup decisions in one workspace you can revisit later.
JSON Visualizer & Cleaner
Clean JSON Online
Clean up JSON online — remove null values, empty objects, and noisy fields, fix formatting, and tidy payloads locally in your browser.
- Format, minify, and clean
- Searchable tree with copyable paths
- Runs in your browser
Quick modeAutosaves in this browser
Object21keys3arrays4deep539 B
JSON
ValidObject · 3 keys · depth 4
Ln 1, Col 1539 B
Pick a node to see its path, and it lights up in the editor.
${}3 keys
user{}5 keysid, name, email, …
projects[]2 items{…}, {…}
meta{}3 keyspage, total, nextPage
Resume inspection work
Return to the same tree exploration, searches, and copied path context instead of starting over with every payload.
Share structured payloads
Send the workspace when a teammate needs the same JSON state, visual tree, and cleaned output in one browser-native flow.
Why it helps
Why clean JSON with this tool
Strip null values, empty strings, empty arrays, and empty objects from a payload in one pass.
Turn a minified or inconsistently indented blob into readable, consistently formatted JSON.
Keep the raw payload, cleanup result, and visual tree together in one saved workspace.
How to use it
How to clean up JSON
1 Paste the messy JSON payload into the workspace.
2 Apply cleanup to remove empty and null fields, then format or minify the result.
3 Copy the cleaned payload, or save and share the workspace for later.
Quick tips
JSON cleanup tips
Clean fixtures and API samples before committing them so diffs stay readable.
Use the visual tree after cleanup to confirm nothing load-bearing was removed.
For invalid JSON, fix the parse error shown with line and column details first, then clean.
FAQ
JSON cleanup questions
What does JSON cleanup remove?
Cleanup targets noise: null values, empty strings, empty arrays, and empty objects, while keeping the meaningful structure intact.
Can I clean large JSON payloads?
Yes. The editor and tree view handle large payloads with search and scrollable inspection, and cleanup runs locally.
Does my JSON leave the browser?
No. Parsing, cleanup, and formatting all run locally, which matters when payloads contain real data.
Can I format the JSON after cleaning it?
Yes. You can format for readability or minify for compactness in the same workspace, then copy the result.
Open the main JSON Visualizer & Cleaner page
This page focuses on one search intent. The main tool page includes the broader product overview, related workflows, and full use cases.