開発・データ
開発・データ：46個の無料ツール。作業を比較し、手順を読んで、ツールを選べます。アカウント不要。
Format and validate JSON, work with CSV and spreadsheets, inspect encodings and prepare structured data. Formatting makes source easier to read; validation checks its structure. Review generated code and converted data before using them in an application.
ツールを選ぶ 46
JSON formatter
Format JSON with readable indentation.
開発・データJSON validator
Check JSON syntax and see parsing errors.
開発・データJSON minifier
Remove unnecessary whitespace from JSON.
開発・データJSON diff
Compare two JSON values and see their differences.
開発・データJSON to CSV
Convert an array of objects to spreadsheet-friendly CSV.
開発・データCSV to JSON
Parse CSV into a JSON array.
開発・データJSON to YAML
Turn JSON values into YAML.
開発・データYAML to JSON
Parse YAML and export JSON.
開発・データXML formatter
Format supplied XML without resolving external entities.
開発・データXML to JSON
Convert XML elements and attributes into JSON.
開発・データSQL formatter
Make SQL easier to read in your chosen dialect.
開発・データHTML beautifier
Format HTML without running it.
開発・データCSS beautifier minifier
Format CSS with consistent indentation.
開発・データJavaScript formatter
Format JavaScript without executing it.
開発・データBase64 encoder decoder
Encode or decode UTF-8 text as Base64.
開発・データURL encoder decoder
Encode or decode a URL component.
開発・データHTML entity encoder
Escape or decode HTML entity characters.
開発・データJWT decoder
Inspect a JWT header and payload without trusting it.
開発・データUUID generator
Generate random v4 or time-ordered v7 UUIDs.
開発・データULID generator
Create sortable ULID identifiers.
開発・データRegex tester
Test matches and replacements with a bounded regex worker.
開発・データUnix timestamp converter
Convert seconds, milliseconds and ISO dates.
開発・データSHA256 hash generator
Calculate a SHA-256 hash of your text.
開発・データMD5 checksum generator
Calculate a legacy MD5 text checksum.
開発・データFile checksum verifier
Calculate a checksum of a file on your device.
開発・データHMAC generator
Sign text with an HMAC key that stays local.
開発・データJSON schema validator
Validate a JSON example against a draft 7 schema.
開発・データCSV viewer editor
Inspect parsed CSV rows and columns.
開発・データCSV delimiter converter
Export CSV using a different delimiter.
開発・データExcel to JSON
Read a workbook sheet into JSON records.
開発・データJSON to Excel
Turn JSON records into an Excel workbook.
開発・データCron expression helper
See the next runs of a cron expression.
開発・データHTTP status reference
Look up a common HTTP response status.
開発・データURL parser
Inspect a URL’s path, query parameters and fragment.
開発・データUser agent parser
Estimate browser and platform details from a user agent.
開発・データUnicode inspector
Inspect individual Unicode code points and bytes.
開発・データString escape unescape
Escape and unescape JSON-compatible strings.
開発・データRandom test data generator
Generate clearly synthetic example records.
開発・データSQL INSERT generator
Create escaped SQL INSERT statements from JSON.
開発・データJSON to TypeScript
Infer a TypeScript type from a JSON example.
開発・データJSON to Dart model
Generate a Dart model from a JSON object.
開発・データAPI request builder
Build and send a bounded HTTP request.
開発・データCertificate decoder
Inspect a PEM certificate’s details and dates.
開発・データColor CSS shadow generator
Preview a CSS box shadow and copy the code.
開発・データDocument chunk splitter
Split text into overlapping Unicode character chunks.
開発・データAI dataset JSONL validator
Validate chat message structures in a JSONL dataset.
開発・データ