Develop
tools · 30 tools
Beautify
Data Convert
JSON to CSV
Convert a JSON array to CSV, Markdown table or SQL; preview and download.
JSON to XML
Convert JSON data to a standard XML document with a custom root node; download as .xml.
XML to JSON
Parse XML into a JSON object; repeated tags become arrays; download as .json.
JSON to YAML
Convert JSON to YAML with proper indentation, lists and quoting of special values.
YAML to JSON
Parse indented YAML into JSON with nested objects, lists and auto-typed scalars.
JSON to Cookie
Turn a JSON object into a cookie string (key=value; ...) with optional URL encoding.
JSON Base64 Codec
Encode JSON to Base64 and decode back, UTF-8 safe so Chinese text never breaks.
JSON to SQL
Generate CREATE TABLE and batch INSERT statements from a JSON array with inferred column types.
SQL to JSON
Extract columns and values from INSERT statements into a JSON array, handling quoted commas and escapes.
JSON to Excel
Export a JSON array to a spreadsheet file (CSV, opens in Excel/WPS and can be saved as xlsx), BOM included.
Excel to JSON
Upload or paste spreadsheet content and convert it to a JSON array; custom separator supported, nothing is uploaded.
CSV to JSON
Convert headed CSV text into a JSON array with custom separator and quoted-field support.
Assist
Timestamp Converter
Convert between Unix timestamp and datetime; auto-detect seconds/ms and show live current time.
Regex Tester
Test regular expressions online with live match highlighting and capture groups.
Text Diff
Compare two texts line by line, marking added, removed and changed lines; great for config and code.
Cron Parser
Parse each field of a cron expression and compute the next 5 execution times.
JSON Key Sorter
Recursively sort JSON object keys alphabetically and re-format for easier diff and reading.
Flex Layout Generator
Visually tune flex parameters with live preview and generate standard CSS; one-click copy.
Grid Layout Generator
Generate CSS Grid layout code visually with custom rows/columns and gap; live preview.
JSON Path Extractor
Extract a value from JSON by dot path (e.g. user.name, tags.0), with nested objects and arrays.
JSON Diff
Recursively diff two JSONs, listing added/removed/changed field paths and values; great for API diffs.
CSV Column Extractor
Parse CSV and extract chosen columns by name, export a trimmed CSV; processed locally.
Cron Builder
Compose a cron expression field by field with common presets; complements the cron parser.
Random Port Generator
Generate random ports (1024-65535) labeled by class (system/registered/dynamic); local only.
Batch Timestamp Converter
Convert many Unix timestamps to dates at once, auto-detecting seconds/ms; local.
JSON Flatten
Flatten nested JSON objects into a single level of key-value pairs with a custom separator.
JSON Unflatten
Restore flat dot-notation keys back into nested JSON objects; numeric keys become arrays.
Loading Spinner Generator
Generate CSS for spinner/dots/bars loading animations with live preview and copy.