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10 free, browser-based utilities spanning JSON formatting, list transformations, and set operations. Search, filter by category, and jump straight in.
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JSON, lists, sets — the utilities teams reach for daily.
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JSON Formatter
Format JSON with proper indentation and syntax highlighting. Instantly see structure at a glance.
Comma Separator
Split text by any separator (space, comma, semicolon, newline, or custom) and rejoin by another. Supports escape sequences.
Remove Duplicates
Remove duplicate items from any list while preserving original order, or optionally sort afterwards.
Sort List
Sort lists alphabetically or numerically, ascending or descending. Works with any custom separator.
Line Formatter
Format multi-line input with trim, bullet points, numbering, or collapse everything into a single line.
Convert to JSON
Convert arrays or list input into JSON arrays and back. Useful for quickly generating valid JSON from CSV or plain lists.
Get Common Sets
Perform set operations (union, intersection, difference) on two lists with customisable separators.
Intersection
Find all items that appear in both input lists — the intersection set — with configurable separators.
Union
Merge two lists into one unified set, removing overlapping items and keeping every unique entry.
Difference
Subtract one list from another to isolate entries that appear only in the first input list.
10
Total tools
3
Categories
100%
Browser‑based