json
json
net.programmes/developer-tools
65+ free in-browser developer tools (JSON, Base64, JWT, hash, regex…) callable over MCP.
transport:streamable-http
tools:87
Target client
run in your project directory
claude mcp add --transport http developer-tools https://programmes.net/mcpsetup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain
Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs
xml
xml
sql
sql
html
html
base64
base64
url
url
jwt
jwt
html-entity
html entity
url-encode
url encode
hash
hash
uuid
uuid
password
password
bcrypt
bcrypt
random
random
timestamp
timestamp
color
color
number-base
number base
case
case
regex
regex
diff
diff
lorem
lorem
word-count
word count
cron
cron
json-csv
json csv
markdown
markdown
yaml-json
yaml json
json-ts
json ts
contrast
contrast
image-base64
image base64
gitignore
gitignore
http-status
http status
slugify
slugify
chmod
chmod
wifi-qr
wifi qr
css-minify
css minify
curl-converter
curl converter
json-schema
json schema
cidr
cidr
user-agent
user agent
color-palette
color palette
password-strength
password strength
jsonpath
jsonpath
totp
totp
data-size
data size
mime
mime
sort-lines
sort lines
jwt-encode
jwt encode
ulid
ulid
string-escape
string escape
ascii
ascii
roman-numeral
roman numeral
json-diff
json diff
morse-code
morse code
markdown-table
markdown table
hmac
hmac
css-units
css units
json-xml
json xml
char-inspector
char inspector
semver
semver
duration
duration
nanoid
nanoid
base-n
base n
luhn
luhn
x509
x509
env-json
env json
toml-json
toml json
csp
csp
security-headers
security headers
ipv6
ipv6
utm
utm
aspect-ratio
aspect ratio
html-jsx
html jsx
jsonc
jsonc
text-cleanup
text cleanup
date-calc
date calc
svg-data-uri
svg data uri
id-decoder
id decoder
docker-compose
docker compose
glob-tester
glob tester
punycode
punycode
ieee754
ieee754
html-markdown
html markdown
robots-txt
robots txt
compress
compress
saml-decoder
saml decoder
key-inspector
key inspector
json-schema-validator
json schema validator
200 resources you attach as context
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.