API Documentation

curl -X POST https://devtools.example.com/api/base64 \
  -d 'input=Enter text to encode or Base64 to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/base64url \
  -d 'input=Enter text to encode or Base64URL to decode...' \
  -d 'mode=encode' \
  -d 'padding=strip'

curl -X POST https://devtools.example.com/api/base32 \
  -d 'input=Enter text to encode or Base32 to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/base58 \
  -d 'input=Enter text to encode or Base58 to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/url-encode \
  -d 'input=Enter text to encode or a percent-encoded string to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/html-entities \
  -d 'input=Enter HTML to encode, or entity-encoded text to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/string-escape \
  -d 'input=Enter string to escape or unescape...' \
  -d 'mode=json' \
  -d 'action=escape'

curl -X POST https://devtools.example.com/api/text-to-binary \
  -d 'input=Enter text to encode or 8-bit binary (space-separated) to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/text-to-unicode \
  -d 'input=Enter text to encode or \uXXXX sequences to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/text-to-nato \
  -d 'input=Enter text to encode or NATO phonetic words to decode...' \
  -d 'mode=encode'

curl -X POST https://devtools.example.com/api/json-yaml \
  -d 'input=Paste JSON or YAML here...' \
  -d 'mode=json-to-yaml'

curl -X POST https://devtools.example.com/api/json-csv \
  -d 'input=JSON: [{"name":"Alice","age":30}]
CSV: name,age\nAlice,30' \
  -d 'direction=json-to-csv'

curl -X POST https://devtools.example.com/api/base-converter \
  -d 'input=Enter number...' \
  -d 'from=2' \
  -d 'to=2'

curl -X POST https://devtools.example.com/api/unix-time \
  -d 'input=Unix timestamp or ISO date string...' \
  -d 'mode=timestamp-to-date'

curl -X POST https://devtools.example.com/api/color \
  -d 'input=#3b82f6' \
  -d 'mode=convert' \
  -d 'palette_type=complementary'

curl -X POST https://devtools.example.com/api/byte-size \
  -d 'input=e.g. 1.5 GB, 1048576, 500m' \
  -d 'unit=auto'

curl -X POST https://devtools.example.com/api/chmod \
  -d 'input=755 or rwxr-xr-x'

curl -X POST https://devtools.example.com/api/text-case \
  -d 'input=myVariableName, my-variable-name, my_variable_name...' \
  -d 'target=all'

curl -X POST https://devtools.example.com/api/roman-numeral \
  -d 'input=Enter integer 1–3999 or a Roman numeral...' \
  -d 'mode=int-to-roman'

curl -X POST https://devtools.example.com/api/list-converter \
  -d 'input=Paste your list here...' \
  -d 'operation=trim' \
  -d 'separator=newline'

curl -X POST https://devtools.example.com/api/json-to-toml \
  -d 'input=Paste JSON object here...'

curl -X POST https://devtools.example.com/api/toml-to-json \
  -d 'input=Paste TOML config here...'

curl -X POST https://devtools.example.com/api/yaml-to-toml \
  -d 'input=Paste YAML document here...'

curl -X POST https://devtools.example.com/api/toml-to-yaml \
  -d 'input=Paste TOML config here...'

curl -X POST https://devtools.example.com/api/json-to-xml \
  -d 'input=Paste JSON here...' \
  -d 'rootName=root'

curl -X POST https://devtools.example.com/api/xml-to-json \
  -d 'input=Paste XML here...'

curl -X POST https://devtools.example.com/api/html-to-markdown \
  -d 'input=Paste HTML...' \
  -d 'bullet=-' \
  -d 'headings=atx' \
  -d 'codeBlocks=fenced'

curl -X POST https://devtools.example.com/api/html-strip \
  -d 'input=Paste HTML...' \
  -d 'whitespace=collapse' \
  -d 'entities=decode'

curl -X POST https://devtools.example.com/api/css-unit-converter \
  -d 'value=16' \
  -d 'from=px' \
  -d 'to=px' \
  -d 'baseFontSize=16' \
  -d 'viewportWidth=1920' \
  -d 'viewportHeight=1080' \
  -d 'parent=16'

curl -X POST https://devtools.example.com/api/timezone-converter \
  -d 'datetime=2026-04-26T15:30:00' \
  -d 'fromTz=Europe/London' \
  -d 'toTz=America/New_York'

curl -X POST https://devtools.example.com/api/duration-converter \
  -d 'input=1h30m or 90 minutes or 5400000'

curl -X POST https://devtools.example.com/api/env-json \
  -d 'input=KEY=value' \
  -d 'mode=env-to-json'

curl -X POST https://devtools.example.com/api/wrap-text \
  -d 'input=Paste text to wrap...' \
  -d 'width=80' \
  -d 'indent=0' \
  -d 'breakWords=false'

curl -X POST https://devtools.example.com/api/line-ending-converter \
  -d 'input=Paste text with mixed line endings...' \
  -d 'to=lf' \
  -d 'detect=auto'

curl -X POST https://devtools.example.com/api/tab-space-converter \
  -d 'input=Paste code or text...' \
  -d 'mode=tabs-to-spaces' \
  -d 'tabWidth=4' \
  -d 'scope=leading-only'

curl -X POST https://devtools.example.com/api/markdown \
  -d 'input=Enter Markdown...'

curl -X POST https://devtools.example.com/api/json-format \
  -d 'input=Paste JSON...' \
  -d 'indent=2'

curl -X POST https://devtools.example.com/api/sql-format \
  -d 'sql=Paste SQL...' \
  -d 'language=sql' \
  -d 'indent=2'

curl -X POST https://devtools.example.com/api/xml-formatter \
  -d 'input=Paste XML...' \
  -d 'indent=2'

curl -X POST https://devtools.example.com/api/json-minify \
  -d 'input=Paste JSON...'

curl -X POST https://devtools.example.com/api/yaml-viewer \
  -d 'input=Paste YAML...'

curl -X POST https://devtools.example.com/api/html-formatter \
  -d 'input=Paste HTML...' \
  -d 'indent=2'

curl -X POST https://devtools.example.com/api/css-formatter \
  -d 'input=Paste CSS...' \
  -d 'mode=format' \
  -d 'indent=2'

curl -X POST https://devtools.example.com/api/uuid-v4 \
  -d 'count=Number of UUIDs (1-50)'

curl -X POST https://devtools.example.com/api/uuid-v7 \
  -d 'count=Number of UUIDs (1-50)'

curl -X POST https://devtools.example.com/api/cuid2 \
  -d 'length=24'

curl -X POST https://devtools.example.com/api/ulid \
  -d 'count=1'

curl -X POST https://devtools.example.com/api/lorem-ipsum \
  -d 'count=5' \
  -d 'unit=paragraphs' \
  -d 'format=plain'

curl -X POST https://devtools.example.com/api/token-generator \
  -d 'length=32' \
  -d 'charset=alphanumeric'

curl -X POST https://devtools.example.com/api/nonce-generator \
  -d 'length=16' \
  -d 'format=hex'

curl -X POST https://devtools.example.com/api/random-port \
  -d 'range=well-known'

curl -X POST https://devtools.example.com/api/mac-address-gen \
  -d 'format=colon' \
  -d 'cast=unicast' \
  -d 'admin=universal'

curl -X POST https://devtools.example.com/api/ipv6-ula \
  -d 'globalId=Leave blank to randomize'

curl -X POST https://devtools.example.com/api/svg-placeholder \
  -d 'width=400' \
  -d 'height=300' \
  -d 'bg=#3b82f6' \
  -d 'fg=#3b82f6' \
  -d 'text=(defaults to WIDTHxHEIGHT)' \
  -d 'format=svg'

curl -X POST https://devtools.example.com/api/meta-tag-gen \
  -d 'title=Page title' \
  -d 'description=Page description (160 chars or less)' \
  -d 'image=https://example.com/og-image.png' \
  -d 'url=https://example.com/page' \
  -d 'type=website'

curl -X POST https://devtools.example.com/api/slugify \
  -d 'input=Hello, World! Crème Brûlée' \
  -d 'separator=-' \
  -d 'case=lowercase' \
  -d 'unicode=strict-ascii'

curl -X POST https://devtools.example.com/api/qr-code \
  -d 'input=Enter text, URL, or any data to encode' \
  -d 'size=200' \
  -d 'errorLevel=L'

curl -X POST https://devtools.example.com/api/wifi-qr-code \
  -d 'ssid=MyWiFiNetwork' \
  -d 'password=Network password (leave empty for open networks)' \
  -d 'encryption=WPA' \
  -d 'hidden=false'

curl -X POST https://devtools.example.com/api/crontab-generator \
  -d 'frequency=every-minute' \
  -d 'minute=0' \
  -d 'hour=0' \
  -d 'dayOfMonth=*' \
  -d 'month=*' \
  -d 'dayOfWeek=*'

curl -X POST https://devtools.example.com/api/url-builder \
  -d 'protocol=https' \
  -d 'host=example.com' \
  -d 'port=8080' \
  -d 'path=/api/users' \
  -d 'queryParams=page=1
limit=50
q=hello world' \
  -d 'hash=section-2'

curl -X POST https://devtools.example.com/api/csp-builder \
  -d 'defaultSrc='\''self'\'' https://cdn.example.com' \
  -d 'scriptSrc='\''self'\'' https://cdn.example.com' \
  -d 'styleSrc='\''self'\'' https://cdn.example.com' \
  -d 'imgSrc='\''self'\'' https://cdn.example.com' \
  -d 'connectSrc='\''self'\'' https://cdn.example.com' \
  -d 'fontSrc='\''self'\'' https://cdn.example.com' \
  -d 'frameSrc='\''self'\'' https://cdn.example.com' \
  -d 'objectSrc='\''self'\'' https://cdn.example.com' \
  -d 'mediaSrc='\''self'\'' https://cdn.example.com' \
  -d 'frameAncestors='\''self'\'' https://cdn.example.com' \
  -d 'upgradeInsecureRequests=false' \
  -d 'blockAllMixedContent=false'

curl -X POST https://devtools.example.com/api/markdown-toc \
  -d 'input=# Heading 1
## Heading 2
...' \
  -d 'maxDepth=1' \
  -d 'style=markdown' \
  -d 'numbered=false'

curl -X POST https://devtools.example.com/api/markdown-table-builder \
  -d 'input=name,age
Alice,30
Bob,25' \
  -d 'inputFormat=csv' \
  -d 'align=left' \
  -d 'delimiter=comma'

curl -X POST https://devtools.example.com/api/mailto-builder \
  -d 'to=alice@example.com, bob@example.com' \
  -d 'cc=carol@example.com' \
  -d 'bcc=dave@example.com' \
  -d 'subject=Hello there' \
  -d 'body=Write your message here...' \
  -d 'replyTo=reply@example.com'

curl -X POST https://devtools.example.com/api/dns-record-template \
  -d 'type=A' \
  -d 'name=@ (apex), www, mail' \
  -d 'ttl=3600' \
  -d 'value=192.0.2.1 (or hostname / policy string)' \
  -d 'priority=10' \
  -d 'weight=5' \
  -d 'port=443'

curl -X POST https://devtools.example.com/api/license-picker \
  -d 'license=mit' \
  -d 'year=1970' \
  -d 'author=Your Name' \
  -d 'project=My Project'

curl -X POST https://devtools.example.com/api/password \
  -d 'mode=random' \
  -d 'length=Length (4-128, default 16)' \
  -d 'uppercase=yes' \
  -d 'lowercase=yes' \
  -d 'digits=yes' \
  -d 'symbols=yes' \
  -d 'words=Word count (2-20, default 4)' \
  -d 'separator=Separator (default -)'

curl -X POST https://devtools.example.com/api/password-strength \
  -d 'password=Enter password to analyze'

curl -X POST https://devtools.example.com/api/hash \
  -d 'input=Enter text to hash...' \
  -d 'algorithm=SHA-256'

curl -X POST https://devtools.example.com/api/hmac \
  -d 'input=Enter text to authenticate...' \
  -d 'key=your-secret-key' \
  -d 'algorithm=SHA-1' \
  -d 'format=hex'

curl -X POST https://devtools.example.com/api/bcrypt \
  -d 'input=Password to hash or verify' \
  -d 'salt=$2b$10$... (paste hash to verify against)' \
  -d 'rounds=Cost factor (4-15, default 10)' \
  -d 'mode=hash'

curl -X POST https://devtools.example.com/api/rsa-keypair \
  -d 'size=2048' \
  -d 'format=pkcs8-pem'

curl -X POST https://devtools.example.com/api/otp \
  -d 'secret=JBSWY3DPEHPK3PXP' \
  -d 'digits=Number of digits (default 6)' \
  -d 'period=Time step in seconds (default 30)' \
  -d 'algorithm=SHA1'

curl -X POST https://devtools.example.com/api/aes-encryption \
  -d 'input=Plaintext to encrypt or base64 ciphertext to decrypt...' \
  -d 'password=Passphrase' \
  -d 'mode=encrypt'

curl -X POST https://devtools.example.com/api/bip39 \
  -d 'words=12'

curl -X POST https://devtools.example.com/api/basic-auth \
  -d 'username=alice' \
  -d 'password=Password'

curl -X POST https://devtools.example.com/api/htpasswd-generator \
  -d 'username=alice' \
  -d 'password=Password' \
  -d 'algorithm=bcrypt' \
  -d 'rounds=10'

curl -X POST https://devtools.example.com/api/jwt-decoder \
  -d 'input=Paste a JWT token here (e.g. eyJhbGc...)'

curl -X POST https://devtools.example.com/api/jwt-builder \
  -d 'payload={
  "sub": "1234567890",
  "name": "John Doe",
  "iat": 1516239022
}' \
  -d 'secret=your-secret-key (leave empty for unsigned)' \
  -d 'algorithm=HS256'

curl -X POST https://devtools.example.com/api/jwt-verifier \
  -d 'token=eyJhbGciOiJIUzI1NiJ9...' \
  -d 'key=-----BEGIN PUBLIC KEY-----
...
-----END PUBLIC KEY-----
  or  your-hmac-secret' \
  -d 'algorithm=HS256'

curl -X POST https://devtools.example.com/api/regex-tester \
  -d 'pattern=e.g. \d+' \
  -d 'input=Text to test against...' \
  -d 'flags=g, i, m, s, u, v, d, y'

curl -X POST https://devtools.example.com/api/diff-checker \
  -d 'a=Paste original text...' \
  -d 'b=Paste modified text...'

curl -X POST https://devtools.example.com/api/cron-explainer \
  -d 'expression=* * * * *'

curl -X POST https://devtools.example.com/api/http-headers \
  -d 'note=Click Submit to inspect your browser'\''s request headers'

curl -X POST https://devtools.example.com/api/user-agent \
  -d 'ua=Paste User-Agent string...'

curl -X POST https://devtools.example.com/api/url-parser \
  -d 'input=https://user:pass@example.com:8080/path?key=value#section'

curl -X POST https://devtools.example.com/api/json-diff \
  -d 'left={ "name": "alice", "age": 30 }' \
  -d 'right={ "name": "alice", "age": 31 }'

curl -X POST https://devtools.example.com/api/json-patch \
  -d 'left={ "name": "alice", "age": 30 }' \
  -d 'right={ "name": "alice", "age": 31 }' \
  -d 'mode=generate-patch'

curl -X POST https://devtools.example.com/api/jsonpath-tester \
  -d 'json={ "books": [{ "title": "A" }, { "title": "B" }] }' \
  -d 'path=$.books[*].title' \
  -d 'mode=values'

curl -X POST https://devtools.example.com/api/mime-types \
  -d 'input=.pdf, png, application/json, image/*'

curl -X POST https://devtools.example.com/api/phone-parser \
  -d 'input=+1 (415) 555-2671 or 0123 456 7890' \
  -d 'country=US'

curl -X POST https://devtools.example.com/api/iban-validator \
  -d 'input=GB82 WEST 1234 5698 7654 32'

curl -X POST https://devtools.example.com/api/email-normalizer \
  -d 'input=alice@example.com
B.O.B+promo@gmail.com
carol+work@googlemail.com' \
  -d 'gmail-dots=strip' \
  -d 'plus-tags=strip'

curl -X POST https://devtools.example.com/api/http-status-codes \
  -d 'input=404, not found, teapot, 5xx'

curl -X POST https://devtools.example.com/api/cookie-parser \
  -d 'input=a=1; b=2; c=3' \
  -d 'type=cookie'

curl -X POST https://devtools.example.com/api/csv-viewer \
  -d 'input=Paste CSV data...' \
  -d 'delimiter=, or '\''tab'\''' \
  -d 'header=header'

curl -X POST https://devtools.example.com/api/semver \
  -d 'version=1.2.3-beta.1+build.5' \
  -d 'range=^1.2.0' \
  -d 'compareTo=1.2.4' \
  -d 'mode=parse'

curl -X POST https://devtools.example.com/api/text-statistics \
  -d 'input=Paste text to analyze...' \
  -d 'wpm=220'

curl -X POST https://devtools.example.com/api/hex-dump \
  -d 'input=Enter text, or a hex string (e.g. 48 65 6c 6c 6f)...' \
  -d 'inputType=text' \
  -d 'width=8'

curl -X POST https://devtools.example.com/api/gzip-size-estimator \
  -d 'input=Paste text to compress...' \
  -d 'level=default'

curl -X POST https://devtools.example.com/api/markdown-link-extractor \
  -d 'input=Paste Markdown...' \
  -d 'format=table'

curl -X POST https://devtools.example.com/api/regex-cheatsheet \
  -d 'search=Search patterns or descriptions...'

curl -X POST https://devtools.example.com/api/git-cheatsheet \
  -d 'search=Search commands or descriptions...'

curl -X POST https://devtools.example.com/api/markdown-cheatsheet \
  -d 'search=Search syntax or descriptions...'

curl -X POST https://devtools.example.com/api/ansi-color-codes \
  -d 'search=Search by name, code, or type...'

curl -X POST https://devtools.example.com/api/ascii-table \
  -d 'search=Search by char, name, decimal, or hex...'

curl -X POST https://devtools.example.com/api/keycode-reference \
  -d 'search=Search by key, code, or category...'

curl -X POST https://devtools.example.com/api/vim-cheatsheet \
  -d 'search=Search commands, descriptions, or modes...'

curl -X POST https://devtools.example.com/api/bash-cheatsheet \
  -d 'search=Search syntax, descriptions, or categories...'

curl -X POST https://devtools.example.com/api/docker-cheatsheet \
  -d 'search=Search commands, descriptions, or categories...'

curl -X POST https://devtools.example.com/api/sql-cheatsheet \
  -d 'search=Search syntax, descriptions, categories, or dialect...'

curl -X POST https://devtools.example.com/api/css-selectors-cheatsheet \
  -d 'search=Search selectors, descriptions, or examples...'

curl -X POST https://devtools.example.com/api/palindrome-anagram \
  -d 'input1=racecar' \
  -d 'input2=carrace' \
  -d 'mode=palindrome-check' \
  -d 'normalize=loose'

curl -X POST https://devtools.example.com/api/cidr \
  -d 'input=192.168.1.0/24'

curl -X POST https://devtools.example.com/api/ipv4-address-converter \
  -d 'input=192.168.1.1' \
  -d 'inputFormat=auto'

curl -X POST https://devtools.example.com/api/ipv4-range-expander \
  -d 'start=10.0.0.0' \
  -d 'end=10.0.0.255'

curl -X POST https://devtools.example.com/api/ipv6-expander-compressor \
  -d 'input=2001:db8::1 or 2001:0db8:0000:0000:0000:0000:0000:0001' \
  -d 'mode=auto'

curl -X POST https://devtools.example.com/api/mac-address-lookup \
  -d 'input=00:1A:2B:3C:4D:5E'

curl -X POST https://devtools.example.com/api/cidr-aggregator \
  -d 'input=10.0.0.0/24
10.0.1.0/24
192.168.1.0/25
192.168.1.128/25'

curl -X POST https://devtools.example.com/api/eui-64-calculator \
  -d 'mac=00:1A:2B:3C:4D:5E' \
  -d 'prefix=fe80:: or 2001:db8::'

curl -X POST https://devtools.example.com/api/math-evaluator \
  -d 'input=e.g. sqrt(2), sin(pi/4), 2^10, (1+2)*3' \
  -d 'precision=auto' \
  -d 'format=decimal'

curl -X POST https://devtools.example.com/api/percentage-calculator \
  -d 'op=a-of-b' \
  -d 'a=e.g. 25' \
  -d 'b=e.g. 200'

curl -X POST https://devtools.example.com/api/eta-calculator \
  -d 'current=e.g. 250' \
  -d 'total=e.g. 1000' \
  -d 'started=2026-04-26T10:00:00Z or now' \
  -d 'now=Leave blank for current time'

curl -X POST https://devtools.example.com/api/date-calculator \
  -d 'date1=2026-04-26' \
  -d 'date2=2027-04-26' \
  -d 'delta=1y2m3d or 30 days' \
  -d 'mode=diff'

curl -X POST https://devtools.example.com/api/download-time \
  -d 'preset=custom' \
  -d 'speed=100' \
  -d 'speedUnit=bps' \
  -d 'game=none' \
  -d 'size=50' \
  -d 'sizeUnit=B' \
  -d 'overhead=5 (TCP/IP, retransmits, throttling)'

curl -X POST https://devtools.example.com/api/prime-checker \
  -d 'input=e.g. 97 or 123456789'

curl -X POST https://devtools.example.com/api/gcd-lcm \
  -d 'numbers=12 18 24
or 12, 18, 24
or one per line'

curl -X POST https://devtools.example.com/api/fibonacci \
  -d 'mode=sequence' \
  -d 'count=10' \
  -d 'value=e.g. 50'

curl -X POST https://devtools.example.com/api/numbers-to-words \
  -d 'mode=number-to-words' \
  -d 'input=1234.56  /  one thousand two hundred' \
  -d 'currency=none'

curl -X POST https://devtools.example.com/api/age-calculator \
  -d 'dob=1990-05-15' \
  -d 'asOf=today'

curl -X POST https://devtools.example.com/api/weekday-of-date \
  -d 'date=2026-04-26'

curl -X POST https://devtools.example.com/api/stats-summary \
  -d 'numbers=1, 2, 3, 4, 5
6 7 8
9
10' \
  -d 'population=sample'

curl -X POST https://devtools.example.com/api/compound-interest \
  -d 'principal=1000' \
  -d 'rate=5' \
  -d 'years=10' \
  -d 'compounds=yearly' \
  -d 'contribution=0' \
  -d 'contributionFreq=yearly'

curl -X POST https://devtools.example.com/api/loan-calculator \
  -d 'principal=250000' \
  -d 'annualRate=5.5' \
  -d 'years=30' \
  -d 'frequency=monthly' \
  -d 'mode=payment'