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Category

Developer Tools

Explore 67 free developer tools online for JSON, SQL, YAML, XML, CSS, JWT, regex, code formatting, converters, validators, and network checks.

67 Tools Instant Results Always Free
67 tools
#1
Bcrypt Generator
Generate bcrypt hash online. Create secure password hashes, choose cost rounds, verify password, copy hash, and download result.
#2
Braille to Text Converter
Convert Unicode Braille into readable text online. Decode Grade 1 letters, numbers, capitalization and punctuation, then copy or download your result.
#3
Cron Expression Generator
Generate cron expressions online. Create minute, hourly, daily, weekly, monthly, and custom cron schedules with examples.
#4
CSS to LESS Converter
Convert CSS to LESS online. Organize related selectors into clean nested LESS, preserve media rules, then copy or download your converted code.
#5
CSS to SCSS Converter
Convert CSS to SCSS online for free. Format styles, create reusable color variables, nest selectors, preview code, and download a clean SCSS file.
#6
CSV to HTML Table Converter
Convert CSV to an HTML table securely. Generate responsive, accessible table markup with escaped cells and download a complete styled HTML file.
#7
CSV to SQL Converter
Convert CSV to SQL online securely. Generate a CREATE TABLE and escaped INSERT statements, then download a ready-to-use SQL file.
#8
CSV to YAML Converter
Convert CSV to YAML online securely. Upload comma-separated data, create readable YAML records, and download the result quickly.
#9
DNS Lookup Tool
Check DNS records online. Lookup A, AAAA, MX, NS, TXT, CNAME, SOA records, IP address, nameservers, and domain DNS details.
#10
DOCX to EPUB Converter
Convert DOCX to EPUB online. Upload a Word file, create an ebook, preview text, and download an EPUB file instantly.
#11
Email Extractor Online
Extract emails online from text. Find email addresses, remove duplicates, sort results, copy emails, and download clean lists.
#12
Excel to SQL Converter
Convert Excel to SQL online for free. Import XLSX, XLS, or CSV files, generate SQL statements, preview results, and download a clean SQL
#13
Gray to Binary Code Converter
Convert Gray code to binary online. Enter Gray code, get binary result, reverse binary to Gray, view steps, copy, and download output.
#14
Handwriting to Text Converter
Convert handwriting to text online. Upload handwritten notes image, extract text with OCR, copy result, and download TXT instantly.
#15
HMAC Generator
Generate HMAC online. Create SHA-1, SHA-256, SHA-384, SHA-512 HMAC signatures with secret key and copy output easily.
#16
HTML Table to CSV Converter
Convert HTML tables to CSV online for free. Paste or upload HTML, select a table, preview clean CSV data, and download the result instantly.
#17
HTML Table to JSON Converter
Convert HTML tables to JSON online for free. Paste or upload HTML, select a table, preview structured JSON, and download the result instantly.
#18
HTML to JSX Converter
Convert HTML to JSX online for free. Fix React attributes, transform inline styles, preview clean JSX, and download a ready-to-use component.
#19
HTTP Header Checker
Check HTTP headers online. View status code, redirects, server headers, cache headers, security headers, and response details.
#20
Infix to Postfix Converter
Convert infix to postfix online. Enter an expression, view stack steps, copy postfix result, and learn how conversion works.
#21
IP Address Lookup
Find IP address details online. Check country, city, region, ISP, timezone, latitude, longitude, and public IP information.
#22
IPYNB to PDF Converter
Convert IPYNB to PDF online. Upload a Jupyter Notebook, choose code visibility, create PDF, and download it fast.
#23
JavaScript Beautifier
Beautify JavaScript code online. Format, indent, clean, minify, copy, and download readable JS code easily.
#24
JSON to C# Converter
Convert JSON to C# online. Generate classes, Lists, nullable types, nested models, and System.Text.Json property mappings, then download clean C# code.
#25
JSON to Go Struct Converter
Convert JSON to Go structs online. Infer nested structs, slices, pointer fields, valid exported names, and JSON tags, then copy or download Go code.
#26
JSON to HTML Table Converter
Convert JSON to an HTML table securely. Turn object arrays into responsive, accessible table markup and download a complete styled HTML file.
#27
JSON to Java Converter
Convert JSON to Java online. Generate nested model classes, Lists, nullable wrapper types, Jackson property mappings, and optional getters and setters.
#28
JSON to Kotlin Data Class Converter
Convert JSON to Kotlin data classes online. Infer nested models, lists, nullable types, defaults, and serialization annotations instantly.
#29
JSON to PHP Array Converter
Convert JSON to a PHP array online. Preserve nested data, strings, numbers, booleans, nulls, and Unicode using short or classic PHP array syntax.
#30
JSON to Python Class Converter
Convert JSON to Python classes online. Generate dataclasses or Pydantic models with nested types, Optional fields, and clean type hints instantly.
#31
JSON to SQL Converter
Convert JSON to SQL online for free. Generate CREATE TABLE and INSERT statements, preview the result, and download a clean SQL file instantly.
#32
JSON to TSV Converter
Convert JSON to TSV online for free. Paste or upload JSON, preview tab-separated data, copy the result, and download a clean TSV file instantly.
#33
JSON to TypeScript Converter
Convert JSON to TypeScript online. Infer interfaces or type aliases from nested objects, arrays, nulls, and mixed values, then copy or download the code.
#34
JSON to YAML Converter
Convert JSON to YAML online. Upload or paste JSON, generate clean YAML, preview output, copy code, and download YAML easily.
#35
JSX to HTML Converter
Convert JSX to HTML online. Replace React attributes, style objects, fragments, comments, and static expressions, then copy or download clean HTML.
#36
JWT Decoder
Decode JWT tokens online. View header, payload, claims, expiry, issued time, algorithm, and copy decoded JWT output easily.
#37
JWT Generator
Generate JWT tokens online. Create HS256 JWT with header, payload, secret, expiry, claims, copy token, and download output.
#38
KrutiDev to Unicode Converter
Convert KrutiDev to Unicode online. Paste Hindi KrutiDev text, get Unicode Devanagari, reverse convert, copy, and download TXT.
#39
LESS to CSS Converter
Convert LESS to CSS online. Compile variables, nesting, mixins, and functions into formatted or minified CSS, then copy or download the result.
#40
Morse Code to Text Converter
Decode Morse code into readable text online. Supports letters, numbers, punctuation, word separators, unknown-token alerts, copy, and download.
#41
PHP Array to JSON Converter
Convert PHP arrays to valid JSON online. Supports nested and associative arrays, formatting, validation, copying, and secure browser processing.
#42
Regex Tester
Test regex patterns online. Match text, highlight results, view groups, flags, count matches, and copy regex output easily.
#43
SHA1 Generator
Generate SHA1 hash online. Convert text to SHA1, create lowercase or uppercase hash, copy output, and download results easily.
#44
SHA512 Generator
Generate SHA512 hash online. Convert text to SHA512, create hex or base64 hash, copy output, and download results easily.
#45
SQL Formatter
Format SQL queries online. Beautify, indent, minify, uppercase keywords, clean SQL code, and copy formatted output easily.
#46
SQL Minifier
Minify SQL queries online. Remove comments, extra spaces, line breaks, clean SQL code, reduce size, and copy output easily.
#47
SQL to CSV Converter
Convert SQL INSERT statements to CSV securely. Extract columns and rows from MySQL or MariaDB dumps, then download a clean CSV file.
#48
SQL to Excel Converter
Convert SQL INSERT statements to Excel securely. Extract database rows into a formatted XLSX workbook without executing uploaded SQL.
#49
SQL to JSON Converter
Convert SQL INSERT statements to JSON securely. Extract structured rows from MySQL or MariaDB dumps and download clean, readable JSON.
#50
SQL to XML Converter
Convert SQL INSERT statements to XML securely. Extract structured database rows and download clean, readable UTF-8 XML without executing SQL.
#51
SSL Certificate Checker
Check SSL certificate details online. Find expiry date, issuer, valid from, days left, domain match, SAN names, and SSL status.
#52
Text to ASCII Art Converter
Convert text to ASCII art online. Create custom banners with adjustable size, density, characters, alignment, live preview, copying, and downloads.
#53
Text to Braille Converter
Convert text to Unicode Braille or decode Braille to text online. Supports capitals, numbers, punctuation, copying, swapping, and downloads.
#54
Text to Morse Code Converter
Convert text to Morse code or decode Morse to text online. Listen to signals, adjust speed and frequency, copy results, and download instantly.
#55
TSV to JSON Converter
Convert TSV to JSON online securely. Upload tab-separated data, create formatted JSON objects, and download the result quickly.
#56
URL Extractor
Extract URLs online from text. Find links, remove duplicates, sort results, filter domains, copy URLs, and download clean lists.
#57
User Agent Parser
Parse user agent strings online. Detect browser, OS, device type, bot status, rendering engine, and platform details.
#58
Website Status Checker
Check website status online. Test if a site is up or down, view response time, HTTP code, redirects, SSL, and server status.
#59
WHOIS Lookup Tool
Check domain WHOIS details online. Find registrar, creation date, expiry date, nameservers, domain status, and raw WHOIS data.
#60
XLSX to JSON Converter
Convert XLSX to JSON online. Upload Excel file, choose sheet mode, preview rows, copy JSON, and download clean JSON easily.
#61
XML to YAML Converter
Convert XML to YAML online for free. Paste or upload XML, preview clean YAML, copy the result, and download a ready-to-use YAML file
#62
XML Validator
Validate XML online. Check XML syntax, tags, structure, parser errors, line issues, copy report, and download results easily.
#63
YAML Formatter
Format YAML online. Beautify, validate, clean, indent, minify YAML code, copy output, and download formatted YAML easily.
#64
YAML to CSV Converter
Convert YAML to CSV online securely. Upload YAML records, create a properly quoted CSV table, and download the result quickly.
#65
YAML to JSON Converter
Convert YAML to JSON online. Upload or paste YAML, generate clean JSON, preview output, copy code, and download JSON easily.
#66
YAML to XML Converter
Convert YAML to XML online for free. Paste or upload YAML, preview valid XML, copy the result, and download a clean XML file instantly.
#67
YAML Validator
Validate YAML online. Check YAML syntax, indentation, tabs, brackets, errors, warnings, and download validation report easily.

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