MCP server with 36 local developer utilities: hashing (MD5/SHA/bcrypt), encoding (Base64/hex/URL/HTML), UUID/password generation, JWT decode, JSON
MCP server with 36 local developer utilities: hashing (MD5/SHA/bcrypt), encoding (Base64/hex/URL/HTML), UUID/password generation, JWT decode, JSON formatting
Think of it as busybox for developer tools — small, essential, and always useful.
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Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| hash_md5 | Generate MD5 hash |
| hash_sha1 | Generate SHA-1 hash |
| hash_sha256 | Generate SHA-256 hash |
| hash_sha512 | Generate SHA-512 hash |
| hash_bcrypt | Generate bcrypt hash (configurable rounds) |
| hash_bcrypt_verify | Verify string against bcrypt hash |
| base64_encode | Encode string to Base64 |
| base64_decode | Decode Base64 to string |
| url_encode | URL-encode (percent-encoding) |
| url_decode | Decode URL-encoded string |
| html_encode | Encode HTML entities |
| html_decode | Decode HTML entities |
| hex_encode | Encode string to hex |
| hex_decode | Decode hex to string |
| generate_uuid | Cryptographic UUID v4 (batch support) |
| generate_nanoid | Compact URL-friendly ID (configurable length) |
| generate_password | Secure password (configurable complexity) |
| generate_random_hex | Random hex string (configurable length) |
| jwt_decode | Decode JWT header & payload (with human-readable dates) |
| jwt_validate | Validate JWT structure & expiration |
| json_format | Pretty-print or minify JSON |
| json_validate | Validate JSON with error location |
| json_path_query | Extract values using dot-notation path |
| timestamp_to_date | Unix timestamp → human date (timezone support) |
| date_to_timestamp | Date string → Unix timestamp |
| number_base_convert | Convert between bases (bin/oct/dec/hex/any) |
| color_convert | Convert colors (HEX ↔ RGB ↔ HSL) |
| byte_convert | Convert byte units (B/KB/MB/GB/TB/PB) |
| cidr_calculate | CIDR → network, broadcast, mask, host range, host count |
| ip_validate | Validate & classify IPv4/IPv6 address |
| text_stats | Character/word/line/sentence count, reading time |
| lorem_ipsum | Generate placeholder text |
| case_convert | Convert between camelCase, snake_case, PascalCase, etc. |
| slugify | Convert string to URL-friendly slug |
| regex_test | Test regex pattern against input |
| text_diff | Line-by-line diff between two texts |
{
"mcpServers": {
"devutils": {
"command": "npx",
"args": [
"-y",
"devutils-mcp-server"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
Read, search and edit files inside allowed directories with the Model Context Protocol reference Filesystem server.
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