OneTaskData Format Tools
CSV to JSON, YAML, XML, GeoJSON and GPX Converters and Viewers
Tools for the formats data comes in. Convert between CSV, JSON, YAML and XML, view and tidy GeoJSON and GPX, turn lists into CSV and query JSON with JSONPath. Large files are handled in the browser without uploading them.
35 tools tagged Data Formats
Audio To CSV/JSON
Export raw audio samples as CSV or JSON for analysis.
Base64 Encoder / Decoder
Encode and decode Base64, standard or URL-safe.
CSV / JSON Converter
Convert CSV to JSON and back, quoting handled properly.
CSV Column Extractor
Keep, drop and reorder columns in CSV data.
CSV Formatter
Align CSV into readable columns or swap delimiters and fix quoting.
CSV To Excel Converter
Convert CSV to an Excel workbook, or an Excel sheet to CSV.
DMARC Report Viewer
Turn a DMARC aggregate XML report into a readable table.
Extract Numbers From Text
Pull every number out of a block of text, with sum and mean.
File Type Identifier
Check a file's real type from its bytes and spot disguised programs.
GeoJSON Editor
View GeoJSON on a map, draw new features and download the file.
GPX Converter
Convert GPX, KML and GeoJSON to each other or to CSV.
GPX Elevation Profile
Chart the elevation profile of a GPX route with gain and grade.
GPX Pace Calculator
Route length, splits and average pace from a GPX, KML or GeoJSON file.
GPX Viewer
See a GPX track on a map with distance, climb and time.
HTML Entity Encoder
Escape and unescape HTML entities in any text.
JSON Diff
Compare two JSON documents and list every change by path.
JSON Formatter
Format, minify and validate JSON, with located errors.
JSON Generator
Generate realistic mock JSON records from a simple name and type list.
JSON To YAML Converter
Convert JSON to YAML and YAML back to JSON.
JSON Tree Viewer
Browse JSON as a collapsible tree with the path to every value.
JSONPath Tester
Run JSONPath queries against pasted JSON and see every match.
JWKS Inspector
List every key in a JWKS and flag leaks, weak keys and duplicates.
Line Ending Converter
Convert text between LF, CRLF and CR line endings instantly.
List To CSV Converter
Turn a line-per-item list into a comma-separated row.
PEM To JWK Converter
Convert public and private keys between PEM and JWK.
Remove Punctuation
Strip punctuation, symbols, numbers or emoji from any text.
SQL Formatter
Turn a one-line SQL query into readable indented SQL.
SRT / VTT Converter
Convert SRT subtitles to WebVTT and back, with an optional time shift.
String Escaper
Turn raw text into a safe string literal in any language.
String Unescaper
Decode backslash escapes and quoted literals back into plain text.
Text To Hex Converter
Convert text to hexadecimal bytes and back again.
URL Encoder / Decoder
Percent-encode and decode URLs, values and form data.
XML Formatter
Indent messy XML or squash it to one line, with tag checking.
XML To JSON Converter
Convert XML to JSON and JSON back to XML.
YAML Formatter
Tidy inconsistent YAML and pinpoint syntax errors by line.