Developer Tools
Developer-focused utilities for debugging, formatting, and query assistance.
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Tools in this category
- CSV to SQL Generator
Generate CREATE TABLE and INSERT statements from CSV data.
Related: csv-cleaner, csv-to-json
- JSON Flatten / JSON to CSV
Flatten nested JSON into dot-notation fields and convert to CSV.
Related: json-to-csv, json-formatter
- JSON Formatter
Beautify JSON with indentation.
Related: json-validator, json-minifier
- JSON Validator
Validate JSON syntax instantly.
Related: json-formatter, json-minifier
- JSON Minifier
Compress JSON by removing whitespace.
Related: json-formatter, json-validator
- JSON Schema Generator
Generate a JSON Schema draft from sample JSON input.
Related: json-formatter, json-validator
- NDJSON to CSV Converter
Convert newline-delimited JSON records into CSV columns.
Related: json-to-csv, json-flatten-to-csv
- Slug Generator
Convert text into clean URL-friendly slugs.
Related: character-counter, url-encoder
- Text Diff Checker
Compare two text blocks and see lines that changed.
- Password Generator
Generate strong passwords with selectable length and character sets (uppercase, lowercase, numbers, symbols).
Related: random-string-generator, hash-generator
- Random String Generator
Generate random alphanumeric strings for test data.
Related: password-generator, uuid-generator
- YAML Validator
Validate YAML syntax, catch indentation errors, and troubleshoot line-level issues quickly.
Related: yaml-formatter, yaml-to-json
- Website Tech Stack Detector
Detect website technology stack from a URL. Find likely framework, hosting/CDN, analytics, and libraries with confidence and evidence.
Related: json-validator, url-parser
- Case Converter
Convert text between upper, lower, title, sentence, kebab, snake, and camel case.
Related: slug-generator, remove-extra-spaces
- Extract URLs from Text
Find and list HTTP/HTTPS URLs from mixed text input.
Related: extract-emails, extract-numbers
- HTML Encoder
Escape unsafe HTML characters into entity-safe text.
Related: html-decoder, url-encoder
- HTML Decoder
Decode HTML entities back into readable text.
Related: html-encoder, url-decoder
- YAML Formatter
Format YAML with consistent indentation for readability.
Related: json-formatter, yaml-validator
- YAML to JSON Converter
Convert valid YAML into formatted JSON output.
Related: yaml-formatter, json-formatter
- JSON to YAML Converter
Convert JSON objects into YAML format.
Related: json-formatter, yaml-formatter
- Curl to Fetch Converter
Convert curl commands into JavaScript fetch() code.
Related: url-parser, query-string-builder
- Cron Expression Builder
Build 5-field cron expressions from structured schedule input.
Related: cron-expression-parser, timestamp-converter
- Lorem Ipsum Generator
Generate placeholder text by words, sentences, or paragraphs.
Related: random-string-generator, slug-generator
- Markdown to HTML Converter
Convert Markdown text into clean HTML output.
Related: html-encoder, html-decoder
- HTML to Markdown Converter
Convert HTML into Markdown-friendly text.
Related: markdown-to-html, text-diff-checker
- JSON Diff Checker
Compare two JSON documents online and highlight added, removed, and changed paths instantly.
Related: json-formatter, json-validator
- XML Validator
Validate XML and instantly detect syntax errors with line-level hints before using XML in APIs, feeds, or config workflows.
Related: xml-to-json, json-to-xml
- XML to JSON Converter
Convert XML documents into structured JSON.
Related: json-to-xml, xml-validator
- JSON to XML Converter
Convert JSON objects into XML markup.
Related: xml-to-json, xml-validator
- Query String Builder
Build URL query strings from JSON parameters.
Related: query-string-parser, url-encoder
- Query String Parser
Parse query strings or URLs into JSON parameters.
Related: query-string-builder, url-parser
- HMAC Generator
Generate HMAC-SHA256 digests from secret and message.
Related: hash-generator, base64-encoder
- Bcrypt Hash Generator
Generate bcrypt password hashes with configurable rounds.
Related: password-generator, hash-generator
- Base64 Encoder
Encode plain text into Base64 format.
Related: base64-decoder, url-encoder
- Base64 Decoder
Decode Base64 content back into readable text.
Related: base64-encoder, url-decoder
- UUID Generator
Generate random UUID v4 identifiers instantly.
Related: timestamp-converter, hash-generator
- URL Encoder
Encode text for safe use in URL query strings.
Related: url-decoder, url-parser
- URL Decoder
Decode URL-encoded strings into readable text.
Related: url-encoder, url-parser
- Regex Tester
Test regex online and generate starter regex from plain-English descriptions.
Related: extract-emails, extract-urls
- Mermaid Editor
Write Mermaid syntax, preview diagrams, and export SVG or PNG instantly.
Related: json-schema-generator, regex-tester
- JWT Encoder
Encode JSON header and payload into an unsigned JWT token.
Related: jwt-decoder, base64-encoder
- JWT Decoder
Decode JWT header and payload claims instantly in your browser.
Related: jwt-encoder, base64-decoder
- Hash Generator
Generate MD5 and SHA hashes from text input.
Related: base64-encoder, base64-decoder
- JSON Path Extractor
Extract nested values from JSON using dot and bracket path syntax.
Related: json-formatter, json-validator
- Cron Expression Parser
Explain 5-field cron expressions in readable language.
Related: cron-expression-builder, timestamp-converter
- SQL Formatter
Format SQL queries with normalized spacing and readable line breaks.
Related: sql-minifier, sql-to-csv
- SQL Minifier
Minify SQL by removing comments and extra whitespace.
Related: sql-formatter, sql-to-csv
- SQL to CSV Converter
Convert SQL INSERT VALUES statements into CSV rows.
Related: csv-to-sql, sql-formatter
- NDJSON Formatter
Format newline-delimited JSON into readable pretty blocks.
Related: ndjson-to-csv, json-formatter
- URL Parser
Parse URL components and query parameters online for debugging and API troubleshooting.
Related: query-string-parser, query-string-builder
- Date Format Converter
Convert date strings and timestamps into common machine-readable formats.
Related: timestamp-converter, cron-expression-parser
- Timestamp Converter
Convert Unix timestamps and date strings into readable time formats.
Related: date-format-converter, cron-expression-parser