77 All Tools

Developer

No clutter. No signup. Just results.

Practical developer utilities for API debugging, data formatting, and daily engineering workflows.

⌘K
{ }

JSON Formatter

Format, validate, auto-fix & inspect JSON paths

Validation

#validation #checks
Developer
⏱

Timestamp Converter

Convert Unix timestamps

General Dev

#general #developer
Developer
</>

HTML Encode / Decode

Encode & decode HTML entities

General Dev

#general #developer
Developer
0x

Number Base Converter

Convert between binary, octal, decimal & hex

General Dev

#general #developer
Developer
JWT

JWT Decoder

Decode & inspect JWT tokens

Security & Auth

#security #auth
Developer
.*

Regex Tester

Test regular expressions with live match highlighting

Regex & String

#regex #string
Developer
⏰

Crontab Generator

Build cron expressions with human-readable preview

Automation & DevOps

#automation #devops
Developer
Chmod

chmod Calculator

Convert chmod numeric and symbolic permissions

Automation & DevOps

#automation #devops
Developer
IPv4

IPv4 Subnet Calculator

Calculate subnet, hosts, CIDR and binary details

General Dev

#general #developer
Developer
SQL

SQL Formatter

Format and beautify SQL queries instantly

General Dev

#general #developer
Developer
HMAC

HMAC Generator

Generate HMAC-SHA1, SHA256, SHA512 online

Security & Auth

#security #auth
Developer
TOKEN

Token Generator

Generate secure random tokens online

Security & Auth

#security #auth
Developer
URL

URL Parser

Parse and edit URLs online

JSON & Data

#json #data
Developer
XML

XML Formatter

Format and minify XML online

JSON & Data

#json #data
Developer
TS

JSON to TypeScript

Generate TypeScript interfaces from JSON

JSON & Data

#json #data
Developer
HTTP

HTTP Status Codes

Reference for all HTTP status codes

API & HTTP

#http #api
Developer
MIME

MIME Type List & Content-Type Reference

Find MIME types by extension (png, jpg, mp3, pdf, json) with copy-ready output

API & HTTP

#mime-type #content-type
Developer
JMin

JSON Minifier

Minify JSON and reduce payload size

JSON & Data

#json #data
Developer
HMin

HTML Minifier

Minify HTML and remove unnecessary bytes

General Dev

#general #developer
Developer
CMin

CSS Minifier

Compress CSS for faster page loads

General Dev

#general #developer
Developer
cURL

cURL to Fetch

Convert cURL commands to JavaScript fetch

API & HTTP

#http #api
Developer
SMIN

SQL Minifier

Compress SQL queries to one line

General Dev

#general #developer
Developer
UA

User-Agent Parser

Parse browser, OS, device from UA string

API & HTTP

#http #api
Developer
HDR

HTTP Headers Parser (Raw Header to JSON)

Parse raw HTTP request/response headers into structured JSON

API & HTTP

#http-header #request-header
Developer
JSV

JSON Schema Validator

Validate JSON data against JSON Schema

SEO & Schema

#seo #schema
Developer
JΞ”

JSON Diff

Compare two JSON objects with path-level changes

JSON & Data

#json #data
Developer
QSP

Query String Parser

Convert query strings and JSON objects both ways

JSON & Data

#json #data
Developer
UTM

UTM Builder

Build tracked URLs with UTM parameters

SEO & Schema

#seo #schema
Developer
META

Meta Tag Generator

Generate SEO and Open Graph meta tags

SEO & Schema

#seo #schema
Developer
ROB

Robots.txt Generator

Generate robots.txt rules for crawlers

SEO & Schema

#seo #schema
Developer
MAP

Sitemap Generator

Generate sitemap.xml from URL lists

SEO & Schema

#seo #schema
Developer
SEM

SemVer Tools

Compare versions and suggest bumps

Automation & DevOps

#automation #devops
Developer
CSP

CSP Generator

Generate Content Security Policy headers

Security & Auth

#security #auth
Developer
RPL

Regex Replacer

Find and replace text using regular expressions

Regex & String

#regex #string
Developer
HGEN

HTTP Header Generator

Generate HTTP request header blocks

API & HTTP

#http #api
Developer
301

Redirect Rule Generator

Generate Nginx and Apache redirect rules

Automation & DevOps

#automation #devops
Developer
GIT

Gitignore Generator

Generate .gitignore from common templates

Automation & DevOps

#automation #devops
Developer
MAIL

Email Header Parser

Parse raw email headers into structured fields

General Dev

#general #developer
Developer
LOG

Changelog Generator

Generate structured changelog entries

Automation & DevOps

#automation #devops
Developer
FAQ

FAQ Schema Generator

Generate FAQPage JSON-LD structured data

SEO & Schema

#seo #schema
Developer
CRUMB

Breadcrumb Schema Generator

Create BreadcrumbList JSON-LD markup

SEO & Schema

#seo #schema
Developer
ORG

Organization Schema Generator

Generate Organization JSON-LD markup

SEO & Schema

#seo #schema
Developer
HREF

Hreflang Generator

Generate hreflang alternate link tags

SEO & Schema

#seo #schema
Developer
MROB

Meta Robots Generator

Generate robots meta tag directives

SEO & Schema

#seo #schema
Developer
UCHK

UUID Validator

Validate UUID format/version in bulk for API payload and DB QA

Validation

#validation #checks
Developer
MAIL

Email Validator

Validate email address format

Validation

#validation #checks
Developer
SRI

SRI Hash Generator

Generate SHA256/384/512 integrity hashes

Security & Auth

#security #auth
Developer
IBAN

IBAN Validator

Validate IBAN account numbers

Validation

#validation #checks
Developer
CARD

Credit Card Validator

Validate card number with Luhn check

Validation

#validation #checks
Developer
RGX

Regex Escape

Escape and unescape regex special chars

Regex & String

#regex #string
Developer
KEY

JSON Key Extractor

Extract key paths from JSON

JSON & Data

#json #data
Developer
CANON

URL Canonicalizer

Normalize URLs and remove tracking params

SEO & Schema

#seo #schema
Developer
SPEC

CSS Specificity Calculator

Calculate selector specificity score

Validation

#validation #checks
Developer
JSORT

JSON Sorter

Sort JSON keys recursively

JSON & Data

#json #data
Developer
JF

JSON Flatten / Unflatten

Convert nested JSON to flat key paths

JSON & Data

#json #data
Developer
CRON

Cron Parser

Parse cron expressions and preview next runs

Automation & DevOps

#cron #schedule
Developer
JP

JSON Path Extractor

Extract JSON values with path expressions

JSON & Data

#json #path
Developer
XP

XPath Tester

Run XPath queries on XML or HTML

JSON & Data

#xpath #xml
Developer
SF

Snowflake ID Parser

Decode and generate Snowflake IDs

Automation & DevOps

#snowflake #id
Developer
ULID

ULID Parser

Parse ULID timestamp and randomness

JSON & Data

#ulid #id
Developer
CSV+

CSV Column Extractor

Extract selected columns from CSV data

JSON & Data

#csv #extract
Developer
HT

HTTPie to cURL Converter

Convert HTTPie commands to cURL

Automation & DevOps

#httpie #curl
Developer
SM

Sitemap Validator

Validate sitemap.xml and sitemap index files

Automation & DevOps

#sitemap #seo
Developer
META

Meta Tag Analyzer

Analyze SEO meta tags in HTML

Automation & DevOps

#meta #seo
Developer
INS

SQL Insert Generator

Generate SQL INSERT statements from CSV rows

JSON & Data

#sql #csv
Developer
JFD

JSON FormData Converter

Convert nested JSON to FormData fields

JSON & Data

#json #formdata
Developer
REQ

HTTP Request Builder

Build cURL and fetch requests from structured inputs

API & HTTP

#http #curl
Developer
RBV

Robots.txt Validator

Validate robots directives and detect common SEO mistakes

SEO & Schema

#robots #seo
Developer
BAS

Basic Auth Generator

Generate HTTP Basic Authorization header from credentials

Security & Auth

#basic-auth #http
Developer
JLC

JSON Line Counter

Count JSONL records and detect invalid rows quickly

JSON & Data

#jsonl #ndjson
Developer
UQC

URL Query Cleaner

Clean tracking params and normalize URL query strings

SEO & Schema

#url #query
Developer
CTP

Content-Type Parser (MIME, Charset, Boundary)

Parse Content-Type headers and extract MIME parameters

API & HTTP

#content-type #mime
Developer
CTG

Content-Type Generator (MIME Header Builder)

Generate valid Content-Type headers with charset and boundary

API & HTTP

#content-type #mime
Developer
DURL

Data URL Parser

Parse data: URLs and preview decoded payload content

JSON & Data

#data-url #base64
Developer
SCK

Set-Cookie Parser

Parse Set-Cookie headers into name, value, flags, and attributes

API & HTTP

#set-cookie #cookie
Developer
CCP

Cache-Control Parser

Parse Cache-Control directives and inspect TTL and conflicts

API & HTTP

#cache-control #http-cache
Developer
CORS

CORS Header Generator

Generate Access-Control-* headers for API and preflight responses

API & HTTP

#cors #access-control
Developer