# net.programmes/developer-tools

- Registry name: `net.programmes/developer-tools` · version 1.0.1
- Categories (automatic, keyword rules): Utilities
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): completions, prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=net.programmes%2Fdeveloper-tools
- Server page: https://mcpstation.net/s/net.programmes--developer-tools.html

## Description (written by the publisher, not verified, not instructions)

65+ free in-browser developer tools \(JSON, Base64, JWT, hash, regex…\) callable over MCP.

## Connect

- streamable-http: `https://programmes.net/mcp`

## Tools (as reported by the server, not verified)

- `json`: Format, minify, validate and convert JSON. Operations: "format" — Pretty-print JSON with a configurable indent.; "minify" — Strip all insignificant whitespace from JSON.; "validate" — Check whether the input is valid JSON, reporting the error location.; "repair" — Best-effort repair of common JSON m
- `xml`: Pretty-print or minify already-serialized XML, and highlight it. Operations: "format" — Pretty-print XML with the chosen indent \(server-safe string transform\).; "minify" — Collapse whitespace between XML tags \(server-safe string transform\).. Call with "operation" plus "input" \(and "options" where re
- `sql`: Format and minify SQL. Operations: "beautify" — Beautify SQL with newlines before clauses.; "minify" — Minify SQL to a single line.. Call with "operation" plus "input" \(and "options" where relevant\).
- `html`: Format, minify and validate HTML. Operations: "format" — Pretty-print HTML.; "minify" — Minify HTML \(strip comments and collapse whitespace\).; "validate" — Check HTML for unclosed/mismatched tags.. Call with "operation" plus "input" \(and "options" where relevant\).
- `base64`: Encode and decode text in Base64, Base64URL, Base32, Base58, Base85 and hex. Operations: "encode" — Encode text into the chosen format.; "decode" — Decode text from the chosen format back to plain text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `url`: Parse, validate and normalize URLs. Operations: "parse" — Break a URL into its component parts.; "validate" — Validate a URL and run basic security/heuristic checks.; "normalize" — Normalize a URL \(drop default ports, sort query params, strip trailing slash\).. Call with "operation" plus "input" \(and
- `jwt`: Decode JWT header and payload \(no signature verification\). Operations: "decode" — Decode a JWT into its header, payload and signature.. Call with "operation" plus "input" \(and "options" where relevant\).
- `html-entity`: Encode and decode HTML entities \(named, decimal, hex\). Operations: "encode" — Encode text into HTML entities.; "decode" — Decode HTML entities back to plain text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `url-encode`: Percent-encode and decode URL strings. Operations: "encode" — Percent-encode a string.; "decode" — Decode a percent-encoded string.. Call with "operation" plus "input" \(and "options" where relevant\).
- `hash`: Compute MD5, SHA-1/256/384/512, CRC32 and HMAC digests. Operations: "hash" — Hash text with the chosen algorithm.; "hmac" — Compute an HMAC digest \(SHA algorithms only\).. Call with "operation" plus "input" \(and "options" where relevant\).
- `uuid`: Generate and inspect UUIDs. Operations: "v4" — Generate one or more random \(v4\) UUIDs.; "v3" — Generate a name-based \(v3 / MD5\) UUID.; "parse" — Parse a UUID and report its version, variant and \(where present\) timestamp.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeata
- `password`: Generate strong random passwords and estimate their strength. Operations: "generate" — Generate a cryptographically random password.; "strength" — Estimate the entropy and strength bucket of a password.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: generate retu
- `bcrypt`: Hash and verify passwords with bcrypt. Operations: "hash" — Hash a password with bcrypt at the given cost.; "verify" — Verify a plaintext password against a bcrypt hash.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: hash returns a different result on each call.
- `random`: Generate cryptographically secure random strings. Operations: "generate" — Generate a secure random string from a chosen pattern.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: generate returns a different result on each call.
- `timestamp`: Convert and inspect Unix timestamps and dates. Operations: "to-date" — Convert a Unix timestamp \(seconds\) to a full date breakdown.; "parse-date" — Auto-detect and parse a date/timestamp string.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: to-date returns a dif
- `color`: Convert colors between HEX, RGB, HSL, HSV and CMYK. Operations: "convert" — Convert a HEX color to every supported color space.; "palette" — Generate a color harmony palette from a base color.. Call with "operation" plus "input" \(and "options" where relevant\).
- `number-base`: Convert numbers between binary, octal, decimal and hex. Operations: "convert" — Convert a number from one base to all supported bases.. Call with "operation" plus "input" \(and "options" where relevant\).
- `case`: Convert text between camelCase, snake\_case, kebab-case and more. Operations: "convert" — Convert text to a single chosen case.; "all" — Return every supported case transform at once.. Call with "operation" plus "input" \(and "options" where relevant\).
- `regex`: Test a regex against a string and apply replacements. Operations: "test" — Find all matches of a regex pattern in a test string.; "replace" — Replace regex matches in a string.. Call with "operation" plus "input" \(and "options" where relevant\).
- `diff`: Compute a line-by-line diff between two texts. Operations: "compare" — Diff two texts and return the lines plus statistics.; "unified" — Produce a unified-diff text between two inputs.. Call with "operation" plus "input" \(and "options" where relevant\).
- `lorem`: Generate placeholder text in several styles. Operations: "generate" — Generate lorem ipsum \(or themed\) placeholder text.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: generate returns a different result on each call.
- `word-count`: Count words/characters and compute readability statistics. Operations: "count" — Compute basic text statistics \(words, characters, sentences, etc.\).; "readability" — Compute readability scores \(Flesch, SMOG, Coleman-Liau\).; "keywords" — Compute keyword density for the text.. Call with "operation" pl
- `cron`: Describe cron expressions and compute upcoming run times. Operations: "describe" — Produce a human-readable description of a cron expression.; "next-runs" — Compute the next N run times for a cron expression.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: next-ru
- `json-csv`: Convert between JSON and CSV. Operations: "json-to-csv" — Convert a JSON array/object to CSV.; "csv-to-json" — Convert CSV to a JSON array.. Call with "operation" plus "input" \(and "options" where relevant\).
- `markdown`: Render Markdown to HTML, build a TOC and compute statistics. Operations: "render" — Render GitHub-flavored Markdown to sanitized HTML.; "toc" — Extract a table of contents from Markdown headers.; "stats" — Compute document statistics for Markdown/plain text.. Call with "operation" plus "input" \(and
- `yaml-json`: Convert between YAML and JSON. Operations: "yaml-to-json" — Convert YAML to JSON.; "json-to-yaml" — Convert JSON to YAML.. Call with "operation" plus "input" \(and "options" where relevant\).
- `json-ts`: Generate TypeScript type declarations from a JSON sample. Operations: "generate" — Infer TypeScript interfaces/types from JSON.. Call with "operation" plus "input" \(and "options" where relevant\).
- `contrast`: Check WCAG contrast between a foreground and background color. Operations: "check" — Compute the contrast ratio and WCAG pass/fail for a color pair.; "best-text" — Pick black or white text for the best contrast on a background.. Call with "operation" plus "input" \(and "options" where relevant\).
- `image-base64`: Build and parse base64 data URIs and embed snippets. Operations: "build-snippets" — Build HTML/CSS/Markdown snippets from an existing data URI.. Call with "operation" plus "input" \(and "options" where relevant\).
- `gitignore`: Generate a combined .gitignore from template keys. Operations: "generate" — Combine one or more template keys into a .gitignore.; "templates" — List the available .gitignore template keys.. Call with "operation" plus "input" \(and "options" where relevant\).
- `http-status`: Look up and search HTTP status codes. Operations: "lookup" — Look up a single status code by number.; "search" — Search status codes by number, name or description.. Call with "operation" plus "input" \(and "options" where relevant\).
- `slugify`: Turn arbitrary text into a clean, URL-safe slug. Operations: "slugify" — Generate a URL slug from text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `chmod`: Convert between octal and symbolic Unix file permissions. Operations: "octal-to-symbolic" — Convert octal permissions \(e.g. "755"\) to a symbolic string and description.; "symbolic-to-octal" — Convert a symbolic permission string \(e.g. "rwxr-xr-x"\) to octal.. Call with "operation" plus "input" \(and "
- `wifi-qr`: Build the standard WIFI: payload string for a WiFi QR code. Operations: "payload" — Build the WIFI: payload string a phone scans to auto-join a network.. Call with "operation" plus "input" \(and "options" where relevant\).
- `css-minify`: Minify or beautify CSS. Operations: "minify" — Minify CSS \(strip comments and whitespace\).; "beautify" — Beautify CSS \(one declaration per line, indented\).. Call with "operation" plus "input" \(and "options" where relevant\).
- `curl-converter`: Convert a curl command into fetch / Python / Node snippets. Operations: "convert" — Parse a curl command and generate code snippets.. Call with "operation" plus "input" \(and "options" where relevant\).
- `json-schema`: Infer a draft-07 JSON Schema from sample JSON. Operations: "generate" — Infer a draft-07 JSON Schema from sample JSON. Call with "operation" plus "input" \(and "options" where relevant\).
- `cidr`: Parse a CIDR block into its network, broadcast and host range. Operations: "calculate" — Calculate the network, broadcast, mask and host range for a CIDR block.. Call with "operation" plus "input" \(and "options" where relevant\).
- `user-agent`: Parse a User-Agent string into browser, engine, OS and device. Operations: "parse" — Parse a User-Agent string into browser, engine, OS and device details.. Call with "operation" plus "input" \(and "options" where relevant\).
- `color-palette`: Generate harmony, shade and tint palettes from a base HEX color. Operations: "generate" — Generate harmony, shade and tint palettes from a base HEX color.. Call with "operation" plus "input" \(and "options" where relevant\).
- `password-strength`: Analyze a password and estimate its entropy, strength and crack time. Operations: "analyze" — Analyze a password and estimate its entropy, strength and crack time.. Call with "operation" plus "input" \(and "options" where relevant\).
- `jsonpath`: Query a JSON document with a JSONPath expression. Operations: "query" — Evaluate a JSONPath expression against a JSON document.. Call with "operation" plus "input" \(and "options" where relevant\).
- `totp`: Generate a time-based one-time password \(TOTP\) from a base32 secret. Operations: "generate" — Generate the current TOTP code for a base32 secret.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: generate returns a different result on each call.
- `data-size`: Parse a data size and convert it to bytes plus decimal and binary units. Operations: "convert" — Parse a data size and convert it to bytes, decimal and binary units.. Call with "operation" plus "input" \(and "options" where relevant\).
- `mime`: Look up MIME types by file extension or MIME type. Operations: "lookup" — Search MIME types by extension or MIME type.. Call with "operation" plus "input" \(and "options" where relevant\).
- `sort-lines`: Sort, reverse, deduplicate and clean up lines of text. Operations: "process" — Sort, deduplicate and clean lines of text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `jwt-encode`: Sign a JSON payload into a JWT with an HMAC secret. Operations: "sign" — Sign a JSON payload into a JWT using an HMAC secret.. Call with "operation" plus "input" \(and "options" where relevant\).
- `ulid`: Generate a lexicographically sortable ULID. Operations: "generate" — Generate a new ULID.. Call with "operation" plus "input" \(and "options" where relevant\). Not repeatable: generate returns a different result on each call.
- `string-escape`: Escape and unescape strings for JSON, JS, HTML, URL and regex. Operations: "escape" — Escape a string for the chosen context.; "unescape" — Unescape a string from the chosen context.. Call with "operation" plus "input" \(and "options" where relevant\).
- `ascii`: Convert text to and from character codes in several bases. Operations: "to-codes" — Convert text to character codes.; "from-codes" — Convert character codes back to text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `roman-numeral`: Convert between integers and Roman numerals. Operations: "to-roman" — Convert an integer to a Roman numeral.; "from-roman" — Convert a Roman numeral to an integer.. Call with "operation" plus "input" \(and "options" where relevant\).
- `json-diff`: Compare two JSON documents and report added, removed and changed values. Operations: "diff" — Diff two JSON documents by path.. Call with "operation" plus "input" \(and "options" where relevant\).
- `morse-code`: Translate text to and from Morse code. Operations: "encode" — Convert text to Morse code.; "decode" — Convert Morse code to text.. Call with "operation" plus "input" \(and "options" where relevant\).
- `markdown-table`: Convert CSV or TSV rows into a Markdown table. Operations: "generate" — Build a Markdown table from delimited rows.. Call with "operation" plus "input" \(and "options" where relevant\).
- `hmac`: Sign a message with HMAC using a secret key and SHA-2 algorithm. Operations: "sign" — Compute an HMAC signature for a message.. Call with "operation" plus "input" \(and "options" where relevant\).
- `css-units`: Convert a numeric value between CSS units \(px, rem, em, pt, pc, %\). Operations: "convert" — Convert a numeric value from one CSS unit to another.. Call with "operation" plus "input" \(and "options" where relevant\).
- `json-xml`: Convert between JSON and XML. Operations: "to-xml" — Convert JSON to XML.; "to-json" — Convert XML to JSON.. Call with "operation" plus "input" \(and "options" where relevant\).
- `char-inspector`: Break a string into per-character Unicode details. Operations: "inspect" — Inspect each character of a string \(code point, category, bytes\).. Call with "operation" plus "input" \(and "options" where relevant\).
- `semver`: Parse, compare, sort and bump Semantic Versions, and test versions against npm-style ranges. Operations: "parse" — Parse a SemVer 2.0.0 version into its components.; "compare" — Compare two versions by SemVer precedence \(-1, 0 or 1\).; "satisfies" — Test whether a version satisfies a range \(^, \~, x,
- `duration`: Convert between ISO 8601 durations, seconds, clock time and human text like "1h30m" or "90 minutes". Operations: "convert" — Parse any duration \(ISO 8601, 1h30m, 90 minutes, 1:30:00, seconds\) into every representation.; "to-iso" — Convert any duration to a canonical ISO 8601 duration string.; "human
- `nanoid`: Generate NanoIDs or custom-alphabet random IDs with crypto randomness, plus a collision-probability estimate. Operations: "generate" — Generate one or more random IDs \(default: 21-char URL-safe NanoID\).; "collision" — Estimate how long until a 1% collision chance for an alphabet size, ID length and
- `base-n`: Encode and decode UTF-8 text as Base32 \(RFC 4648 + hex\), Crockford Base32, Base58 \(Bitcoin\), Ascii85 or Z85. Operations: "encode" — Encode UTF-8 text in the chosen scheme.; "decode" — Decode to UTF-8 text \(binary payloads are returned as hex\).. Call with "operation" plus "input" \(and "options" where
- `luhn`: Validate check digits: Luhn card numbers \(with brand\), IBAN mod-97, ISBN-10/13 and EAN/UPC barcodes. Format only — nothing is looked up or stored. Operations: "validate" — Validate a number, auto-detecting its type or using the one you choose.; "check-digit" — Compute the Luhn or GS1 \(EAN/UPC\) check
- `x509`: Decode PEM/DER X.509 certificates: subject, issuer, validity, SANs, key type/size, signature algorithm, extensions and fingerprints. Operations: "decode" — Decode every certificate in a PEM bundle \(or one bare base64 DER\).. Call with "operation" plus "input" \(and "options" where relevant\). Not repea
- `env-json`: Convert dotenv files to JSON and back, with dotenv-compatible quoting, escapes, comments, export prefixes and multi-line values, plus validation warnings. Operations: "to-json" — Parse a .env file into a JSON object \(last duplicate wins\).; "to-env" — Write a JSON object as .env lines, quoting values
- `toml-json`: Convert TOML 1.0 to JSON and JSON to TOML, reporting anything that cannot round-trip. Operations: "to-json" — Parse TOML and return pretty-printed JSON.; "to-toml" — Convert a JSON object to TOML \(nulls are dropped with a warning\).. Call with "operation" plus "input" \(and "options" where relevant\).
- `csp`: Parse a Content-Security-Policy, explain each directive and flag weaknesses \(unsafe-inline, wildcards, missing object-src/base-uri/frame-ancestors…\). Operations: "evaluate" — Parse a CSP header and return its directives and findings by severity.; "harden" — Add the low-risk directives a policy is mi
- `security-headers`: Grade pasted HTTP response headers \(HSTS, CSP, nosniff, framing, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP, cookies\) A+ to F. Parses text only; never fetches a URL. Operations: "grade" — Grade a raw header block and explain each check.. Call with "operation" plus "input" \(and "options" whe
- `ipv6`: Expand and compress IPv6 addresses \(RFC 5952\), classify them \(link-local, ULA, multicast, documentation…\), extract embedded IPv4, do prefix and range maths, and build ip6.arpa names. Operations: "analyze" — Analyse an address, prefix or range: canonical and expanded forms, type, embedded IPv4, netwo
- `utm`: Build campaign URLs with utm\_\* parameters, parse and lint tagged links, and strip UTM and click-ID tracking parameters. Operations: "build" — Add UTM parameters to a URL, normalising case and spaces, and lint the result.; "parse" — Split a URL into UTM tags, ad click IDs and other parameters, with w
- `aspect-ratio`: Reduce a ratio or resolution to lowest terms, name the nearest common ratio, solve the missing dimension and write CSS aspect-ratio. Operations: "analyze" — Reduce a ratio or size \(16:9, 1920x1080, 2.39\) and return presets, CSS and whole-pixel sizes.; "solve" — Given a ratio and one dimension, compu
- `html-jsx`: Convert HTML or SVG markup to React JSX: className/htmlFor, camelCased SVG attributes, style objects, self-closing tags, JSX comments. Operations: "convert" — Convert an HTML fragment or document to JSX, with warnings for anything to review.. Call with "operation" plus "input" \(and "options" where r
- `jsonc`: Convert JSON5, JSONC \(tsconfig, VS Code settings\) and relaxed JSON to strict JSON, or reformat them with comments kept, reporting every non-JSON feature used. Operations: "to-json" — Convert JSON5 / JSONC to strict RFC 8259 JSON.; "format" — Re-print JSON / JSON5 / JSONC tidily as JSONC or JSON5, ke
- `text-cleanup`: Find and remove invisible Unicode \(zero-width, bidi/Trojan Source, tag-character smuggling\), fix line endings, trailing whitespace, tabs and smart quotes, and normalise Unicode. Operations: "scan" — Report invisible and special characters, hidden tag-character text, unterminated bidi controls, line
- `date-calc`: Days, months and business days between dates, add or subtract durations, ISO week numbers and day of year, and DST-aware elapsed time between local times. Operations: "diff" — Difference between two dates in years/months/days, total days, weeks and business days.; "add" — Add or subtract a duration
- `svg-data-uri`: Minify an SVG and encode it as a compact percent-encoded \(or base64\) data URI, with background-image and mask-image CSS. Operations: "encode" — Optimise an SVG and return url-encoded and base64 data URIs, sizes and CSS snippets.; "decode" — Decode a data:image/svg+xml URI \(percent-encoded or base64\)
- `id-decoder`: Decode IDs: Snowflake, MongoDB ObjectId, KSUID, TypeID, ULID, UUID and CUID2 — timestamp, machine fields and randomness. Operations: "decode" — Detect each ID's format and take it apart \(one ID per line, up to 200\).. Call with "operation" plus "input" \(and "options" where relevant\).
- `docker-compose`: Convert docker run commands to a Docker Compose file and Compose services back. Operations: "to-compose" — Convert one or more docker run commands to Compose services \(ports, volumes, env, name, restart, network, command\).; "to-run" — Convert a Compose file \(or one service\) to a docker run command p
- `glob-tester`: Test .gitignore or glob patterns against a list of paths and see which rule matched each one. Operations: "test" — Match paths against gitignore rules \(negation, anchoring, \*\*, directory-only\) or plain globs.. Call with "operation" plus "input" \(and "options" where relevant\).
- `punycode`: Convert internationalised domain names to and from Punycode \(RFC 3492\): bücher.example ⇄ xn--bcher-kva.example. Operations: "to-ascii" — Encode each Unicode label as an xn-- label \(one domain, email or URL per line; labels are NFC-normalised and lowercased\).; "to-unicode" — Decode each xn-- label ba
- `ieee754`: Inspect IEEE 754 float32/float64: sign, exponent and mantissa bits, hex, the exact stored value and the rounding error. Operations: "inspect" — Read a decimal \(0.1, -2.5e-8, Infinity, NaN\) or a bit pattern \(0x3DCCCCCD, 32 or 64 binary digits\) and show how float32 and float64 store it.. Call with "op
- `html-markdown`: Convert HTML to Markdown \(CommonMark + GitHub tables\), dropping scripts and styles. Operations: "convert" — Convert an HTML page or fragment to Markdown: headings, lists, links, images, code blocks, tables and blockquotes.. Call with "operation" plus "input" \(and "options" where relevant\).
- `robots-txt`: Build robots.txt that treats search engines, AI answer bots and AI training crawlers separately; validate llms.txt. Operations: "build" — Build robots.txt: allow or block search engines, AI answer engines/assistants and AI training crawlers \(named\), with Content-Signal and Sitemap lines.; "validate-
- `compress`: gzip, deflate \(zlib\) or raw-deflate text to Base64 or hex, and decompress it back. Operations: "compress" — Compress UTF-8 text with gzip, deflate \(zlib\) or raw deflate.; "decompress" — Decompress Base64 or hex gzip/deflate data back to text \(output up to 256 KB\).. Call with "operation" plus "input"
- `saml-decoder`: Decode a SAMLRequest or SAMLResponse \(Base64, or deflate + Base64\) and summarise it. Signatures are not verified. Operations: "decode" — Decode a SAML message and return its issuer, status, NameID, audience, conditions, validity window, attributes and pretty-printed XML. Signatures are reported, nev
- `key-inspector`: Inspect a CSR \(subject, SANs, key, signature check\), OpenSSH public keys \(type, bits, ssh-keygen fingerprints\) or a JWK / JWKS \(RFC 7638 thumbprint, PEM and OpenSSH forms\). Private keys are refused. Operations: "inspect" — Inspect a PEM CSR or public key, OpenSSH public key lines \(authorized\_keys, k
- `json-schema-validator`: Validate JSON data against a JSON Schema \(drafts 2020-12, 2019-09, 7 and 4\) and list each error with its data path and schema keyword. Operations: "validate" — Validate JSON data against a JSON Schema.. Call with "operation" plus "input" \(and "options" where relevant\).

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