Base64 File Encoder
Encode text and data instantly in your browser.
Browser Info
Format, inspect, and transform developer data instantly in your browser.
NewCron Expression Explainer
Format, inspect, and transform developer data instantly in your browser.
Crontab Generator
Generate production-ready output instantly in your browser.
CSS Formatter
Format and clean structured content instantly in your browser.
CSS Minifier
Minify and optimize content instantly in your browser.
NewCSS Specificity Calculator
Calculate results instantly in your browser.
CSS Sprite Gen
Edit and process images instantly in your browser.
NewCSS to Tailwind Converter
Convert formats and units instantly in your browser.
NewDockerfile Generator
Generate production-ready output instantly in your browser.
NewENV File Parser
Decode and inspect data instantly in your browser.
Favicon Extractor
Extract useful output instantly in your browser.
NewGitignore Generator
Generate production-ready output instantly in your browser.
Hex Dump Viewer
Preview and inspect results instantly in your browser.
HTML Entities Encoder
Encode text and data instantly in your browser.
HTML Formatter
Format and clean structured content instantly in your browser.
HTML Minifier
Minify and optimize content instantly in your browser.
HTML to Markdown
Convert formats and units instantly in your browser.
HTTP Header Checker
Check and validate input instantly in your browser.
NewHTTP Status Code Reference
Format, inspect, and transform developer data instantly in your browser.
JavaScript Formatter
Format and clean structured content instantly in your browser.
JavaScript Minifier
Minify and optimize content instantly in your browser.
NewJSON Diff Viewer
Preview and inspect results instantly in your browser.
JSON Minifier
Minify and optimize content instantly in your browser.
JSON Prettifier
Format and clean structured content instantly in your browser.
JSON Schema Gen
Convert and edit documents instantly in your browser.
NewJSON Schema Validator
Check and validate input instantly in your browser.
NewJSON to TypeScript
Convert formats and units instantly in your browser.
NewJWT Builder
Format, inspect, and transform developer data instantly in your browser.
JWT Decoder
Decode and inspect data instantly in your browser.
Logic AND OR NOT Simulator
Solve math and conversion tasks instantly in your browser.
Logic XOR XNOR Simulator
Solve math and conversion tasks instantly in your browser.
Lorem Pixum
Format, inspect, and transform developer data instantly in your browser.
NewMarkdown Preview
Format, inspect, and transform developer data instantly in your browser.
Markdown to HTML
Convert formats and units instantly in your browser.
My IP
Format, inspect, and transform developer data instantly in your browser.
Regex Tester
Check and validate input instantly in your browser.
Screen Resolution Checker
Check and validate input instantly in your browser.
Security Headers Check
Format, inspect, and transform developer data instantly in your browser.
SQL Formatter
Format and clean structured content instantly in your browser.
String Hash Comparator
Transform and analyze text instantly in your browser.
NewSVG Optimizer
Format, inspect, and transform developer data instantly in your browser.
NewTailwind Spacing Converter
Convert formats and units instantly in your browser.
User Agent Parser
Decode and inspect data instantly in your browser.
Viewport Checker
Check and validate input instantly in your browser.
NewWCAG Contrast Checker
Check and validate input instantly in your browser.
XML Formatter
Format and clean structured content instantly in your browser.
YAML Formatter
Format and clean structured content instantly in your browser.
About Development & Code Tools
Developers reach for small utility tools dozens of times per day — formatting a JSON blob, decoding a JWT, generating a UUID, converting a cron expression to English. NoxaKit's Development & Code collection puts those operations one tab away, with no signup, no rate limit, and no code sent to a server.
**Who uses these tools?** Backend engineers use the JSON formatter, SQL formatter, YAML↔JSON converter, and regex tester. Frontend developers use the CSS formatter, Tailwind converter, flexbox generator, and CSS specificity calculator. Full-stack teams use the JWT decoder/builder, bcrypt tester, Base64 encoder, and ENV file parser. DevOps engineers use the crontab generator, cron explainer, Dockerfile generator, and gitignore generator. Security engineers use the hash generators, AES encrypt/decrypt, and RSA key pair generator.
**Common workflows** API debugging: paste raw JSON → prettify → diff against expected → validate against JSON Schema → copy clean output. Auth debugging: paste JWT → decode header and payload → inspect expiry and claims → rebuild with corrected payload. Database query: format SQL → check regex pattern in regex tester → test cron expression for scheduled job.
**Why no-upload matters for developers** Production tokens, API keys, and environment variables sometimes appear in the data being debugged. Browser-only processing ensures that a JWT or .env file never leaves the local machine during inspection.
**Subcategories** Code Formatting covers JSON, YAML, XML, SQL, HTML, CSS, JS prettifiers and minifiers. Encoding & Decoding includes Base64, URL encoding, HTML entities, and hex/binary converters. Code Analysis offers regex tester, CSS specificity, and JWT decoder. Code Generation includes UUID, cron builder, Dockerfile, gitignore, and JSON Schema generators. Utilities covers browser info, user-agent parser, HTTP headers, and screen resolution. Networking handles subnet, CIDR, IP conversion, and DNS formatting.
See Also