Tool tree

devtils-one.vercel.app

Developer ToolsTools verifiedOct 26, 2026

Format JSON, convert cases, encode Base64, test regex, and convert colors. Fast, keyboard-first, and beautifully designed — every tool runs in your browser.

page: `Every page`

json_to_typescriptAction

Convert a JSON sample to TypeScript interfaces / types. Infers optional fields, named subtypes, and format hints (date-time, uuid, email).

View tool JSON

{
  "name": "json_to_typescript",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON sample to TypeScript interfaces / types. Infers optional fields, named subtypes, and format hints (date-time, uuid, email).",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string",
        "description": "JSON to convert."
      },
      "rootName": {
        "type": "string",
        "default": "Root"
      },
      "declarationStyle": {
        "type": "string",
        "enum": [
          "interface",
          "type"
        ],
        "default": "interface"
      },
      "readonly": {
        "type": "boolean",
        "default": false
      },
      "childrenFirst": {
        "type": "boolean",
        "default": true
      }
    }
  },
  "page": "/"
}

json_to_zodAction

Convert a JSON sample to a Zod schema with z.infer type alias. Surfaces format refinements (.email, .uuid, .datetime).

View tool JSON

{
  "name": "json_to_zod",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON sample to a Zod schema with z.infer type alias. Surfaces format refinements (.email, .uuid, .datetime).",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "rootName": {
        "type": "string",
        "default": "root"
      },
      "strict": {
        "type": "boolean",
        "default": false
      },
      "applyFormatRefinements": {
        "type": "boolean",
        "default": true
      }
    }
  },
  "page": "/"
}

json_to_goAction

Convert a JSON sample to Go struct definitions with json tags. Optional fields get pointer-with-omitempty.

View tool JSON

{
  "name": "json_to_go",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON sample to Go struct definitions with json tags. Optional fields get pointer-with-omitempty.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "packageName": {
        "type": "string",
        "default": "main"
      },
      "jsonTagStyle": {
        "type": "string",
        "enum": [
          "original",
          "snake",
          "camel"
        ],
        "default": "original"
      },
      "omitemptyOnOptional": {
        "type": "boolean",
        "default": true
      }
    }
  },
  "page": "/"
}

json_to_pythonAction

Convert a JSON sample to Python dataclasses, TypedDicts, or Pydantic v2 BaseModel classes.

View tool JSON

{
  "name": "json_to_python",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON sample to Python dataclasses, TypedDicts, or Pydantic v2 BaseModel classes.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "classKind": {
        "type": "string",
        "enum": [
          "dataclass",
          "typeddict",
          "pydantic"
        ],
        "default": "dataclass"
      },
      "useSlots": {
        "type": "boolean",
        "default": false
      }
    }
  },
  "page": "/"
}

json_to_rustAction

Convert a JSON sample to Rust serde structs with snake_case fields and Option<T> for optional / nullable.

View tool JSON

{
  "name": "json_to_rust",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON sample to Rust serde structs with snake_case fields and Option<T> for optional / nullable.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "extraDerives": {
        "type": "array",
        "items": {
          "type": "string"
        }
      },
      "denyUnknownFields": {
        "type": "boolean",
        "default": false
      }
    }
  },
  "page": "/"
}

json_to_csvAction

Convert a JSON array of objects to CSV. Configurable delimiter, dot-flattening for nested objects, header row, BOM, CRLF.

View tool JSON

{
  "name": "json_to_csv",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert a JSON array of objects to CSV. Configurable delimiter, dot-flattening for nested objects, header row, BOM, CRLF.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string",
        "description": "JSON array of objects."
      },
      "delimiter": {
        "type": "string",
        "default": ","
      },
      "flattenDelimiter": {
        "type": "string",
        "default": "."
      },
      "includeHeader": {
        "type": "boolean",
        "default": true
      },
      "bom": {
        "type": "boolean",
        "default": false
      },
      "crlf": {
        "type": "boolean",
        "default": false
      }
    }
  },
  "page": "/"
}

json_to_yamlAction

Convert JSON to YAML with configurable indent, line width, and key sorting.

View tool JSON

{
  "name": "json_to_yaml",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert JSON to YAML with configurable indent, line width, and key sorting.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "indent": {
        "type": "integer",
        "default": 2
      },
      "lineWidth": {
        "type": "integer",
        "default": 120
      },
      "sortKeys": {
        "type": "boolean",
        "default": false
      }
    }
  },
  "page": "/"
}

json_to_xmlAction

Convert any JSON value to XML with custom root tag, item tag for arrays, and XML declaration.

View tool JSON

{
  "name": "json_to_xml",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert any JSON value to XML with custom root tag, item tag for arrays, and XML declaration.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "rootTag": {
        "type": "string",
        "default": "root"
      },
      "itemTag": {
        "type": "string",
        "default": "item"
      },
      "declaration": {
        "type": "boolean",
        "default": true
      }
    }
  },
  "page": "/"
}

json_to_schemaAction

Infer a JSON Schema (draft 2020-12 or draft-07) from any sample document.

View tool JSON

{
  "name": "json_to_schema",
  "kind": "act",
  "impl": "imperative",
  "description": "Infer a JSON Schema (draft 2020-12 or draft-07) from any sample document.",
  "inputSchema": {
    "type": "object",
    "required": [
      "json"
    ],
    "properties": {
      "json": {
        "type": "string"
      },
      "draft": {
        "type": "string",
        "enum": [
          "2020-12",
          "draft-07"
        ],
        "default": "2020-12"
      }
    }
  },
  "page": "/"
}

base64_encodeAction

Encode a UTF-8 string to Base64. Supports standard or URL-safe variants.

View tool JSON

{
  "name": "base64_encode",
  "kind": "act",
  "impl": "imperative",
  "description": "Encode a UTF-8 string to Base64. Supports standard or URL-safe variants.",
  "inputSchema": {
    "type": "object",
    "required": [
      "input"
    ],
    "properties": {
      "input": {
        "type": "string"
      },
      "variant": {
        "type": "string",
        "enum": [
          "standard",
          "url-safe"
        ],
        "default": "standard"
      }
    }
  },
  "page": "/"
}

base64_decodeAction

Decode a Base64 string to its original UTF-8 text. Auto-detects standard vs URL-safe.

View tool JSON

{
  "name": "base64_decode",
  "kind": "act",
  "impl": "imperative",
  "description": "Decode a Base64 string to its original UTF-8 text. Auto-detects standard vs URL-safe.",
  "inputSchema": {
    "type": "object",
    "required": [
      "input"
    ],
    "properties": {
      "input": {
        "type": "string"
      },
      "variant": {
        "type": "string",
        "enum": [
          "standard",
          "url-safe"
        ],
        "default": "standard"
      }
    }
  },
  "page": "/"
}

jwt_decodeAnswer

Decode a JWT into its header and payload. Does NOT verify the signature.

View tool JSON

{
  "name": "jwt_decode",
  "kind": "answer",
  "impl": "imperative",
  "description": "Decode a JWT into its header and payload. Does NOT verify the signature.",
  "inputSchema": {
    "type": "object",
    "required": [
      "token"
    ],
    "properties": {
      "token": {
        "type": "string"
      }
    }
  },
  "page": "/"
}

text_case_convertAction

Convert text between case formats (camelCase, snake_case, kebab-case, PascalCase, SCREAMING_SNAKE, Title Case, sentence case, and more).

View tool JSON

{
  "name": "text_case_convert",
  "kind": "act",
  "impl": "imperative",
  "description": "Convert text between case formats (camelCase, snake_case, kebab-case, PascalCase, SCREAMING_SNAKE, Title Case, sentence case, and more).",
  "inputSchema": {
    "type": "object",
    "required": [
      "input",
      "target"
    ],
    "properties": {
      "input": {
        "type": "string"
      },
      "target": {
        "type": "string",
        "description": "Target case id — one of: upper, lower, title, sentence, camel, pascal, snake, kebab, screamingSnake, dot, train, cobol, path, toggle, alternating",
        "enum": [
          "upper",
          "lower",
          "title",
          "sentence",
          "camel",
          "pascal",
          "snake",
          "kebab",
          "screamingSnake",
          "dot",
          "train",
          "cobol",
          "path",
          "toggle",
          "alternating"
        ]
      }
    }
  },
  "page": "/"
}

code_formatAction

Format source code with Prettier. Supports JavaScript, TypeScript, JSX, TSX, JSON, JSON5, CSS, SCSS, Less, HTML, Vue, Markdown, YAML, and GraphQL.

View tool JSON

{
  "name": "code_format",
  "kind": "act",
  "impl": "imperative",
  "description": "Format source code with Prettier. Supports JavaScript, TypeScript, JSX, TSX, JSON, JSON5, CSS, SCSS, Less, HTML, Vue, Markdown, YAML, and GraphQL.",
  "inputSchema": {
    "type": "object",
    "required": [
      "code",
      "language"
    ],
    "properties": {
      "code": {
        "type": "string",
        "description": "Source code to format."
      },
      "language": {
        "type": "string",
        "enum": [
          "javascript",
          "typescript",
          "jsx",
          "tsx",
          "flow",
          "json",
          "json5",
          "jsonc",
          "css",
          "scss",
          "less",
          "html",
          "vue",
          "angular",
          "handlebars",
          "markdown",
          "mdx",
          "yaml",
          "graphql"
        ],
        "description": "Language id — one of: javascript, typescript, jsx, tsx, flow, json, json5, jsonc, css, scss, less, html, vue, angular, handlebars, markdown, mdx, yaml, graphql"
      },
      "tabWidth": {
        "type": "integer",
        "default": 2
      },
      "useTabs": {
        "type": "boolean",
        "default": false
      },
      "printWidth": {
        "type": "integer",
        "default": 80
      },
      "semi": {
        "type": "boolean",
        "default": true
      },
      "singleQuote": {
        "type": "boolean",
        "default": false
      },
      "trailingComma": {
        "type": "string",
        "enum": [
          "all",
          "es5",
          "none"
        ],
        "default": "all"
      },
      "bracketSpacing": {
        "type": "boolean",
        "default": true
      },
      "arrowParens": {
        "type": "string",
        "enum": [
          "always",
          "avoid"
        ],
        "default": "always"
      }
    }
  },
  "page": "/"
}

xml_formatAction

Format, minify, or convert XML to JSON. Auto-detects flavor (SVG, SOAP, RSS, Atom, POM, Android) from the root element. Set `mode: 'json'` to receive the XML-as-JSON conversion instead of formatted XML.

View tool JSON

{
  "name": "xml_format",
  "kind": "act",
  "impl": "imperative",
  "description": "Format, minify, or convert XML to JSON. Auto-detects flavor (SVG, SOAP, RSS, Atom, POM, Android) from the root element. Set `mode: 'json'` to receive the XML-as-JSON conversion instead of formatted XML.",
  "inputSchema": {
    "type": "object",
    "required": [
      "xml"
    ],
    "properties": {
      "xml": {
        "type": "string",
        "description": "XML source."
      },
      "mode": {
        "type": "string",
        "enum": [
          "format",
          "minify",
          "json"
        ],
        "default": "format"
      },
      "flavor": {
        "type": "string",
        "enum": [
          "auto",
          "generic",
          "svg",
          "soap",
          "rss",
          "atom",
          "pom",
          "android"
        ],
        "default": "auto",
        "description": "auto picks SVG / SOAP / RSS / Atom / POM / Android from the root element."
      },
      "indent": {
        "type": "integer",
        "default": 2
      },
      "useTab": {
        "type": "boolean",
        "default": false
      },
      "selfClosing": {
        "type": "string",
        "enum": [
          "preserve",
          "expand",
          "compact"
        ],
        "default": "compact"
      },
      "keepComments": {
        "type": "boolean",
        "default": false
      },
      "sortAttributes": {
        "type": "boolean",
        "default": false
      },
      "stripNamespaces": {
        "type": "boolean",
        "default": false
      },
      "declaration": {
        "type": "string",
        "enum": [
          "preserve",
          "strip",
          "add"
        ],
        "default": "preserve"
      }
    }
  },
  "page": "/"
}

sql_formatAction

Format a SQL query with dialect-aware indentation. Dialects: sql, postgresql, mysql, mariadb, sqlite, transactsql, plsql, bigquery, snowflake, redshift. Options control keyword case, indent, line width, leading-comma style, and AND/OR placement.

View tool JSON

{
  "name": "sql_format",
  "kind": "act",
  "impl": "imperative",
  "description": "Format a SQL query with dialect-aware indentation. Dialects: sql, postgresql, mysql, mariadb, sqlite, transactsql, plsql, bigquery, snowflake, redshift. Options control keyword case, indent, line width, leading-comma style, and AND/OR placement.",
  "inputSchema": {
    "type": "object",
    "required": [
      "sql",
      "dialect"
    ],
    "properties": {
      "sql": {
        "type": "string",
        "description": "SQL source to format."
      },
      "dialect": {
        "type": "string",
        "enum": [
          "sql",
          "postgresql",
          "mysql",
          "mariadb",
          "sqlite",
          "transactsql",
          "plsql",
          "bigquery",
          "snowflake",
          "redshift"
        ],
        "description": "SQL dialect — picks parser variant."
      },
      "tabWidth": {
        "type": "integer",
        "default": 2
      },
      "useTabs": {
        "type": "boolean",
        "default": false
      },
      "keywordCase": {
        "type": "string",
        "enum": [
          "preserve",
          "upper",
          "lower"
        ],
        "default": "upper"
      },
      "identifierCase": {
        "type": "string",
        "enum": [
          "preserve",
          "upper",
          "lower"
        ],
        "default": "preserve"
      },
      "functionCase": {
        "type": "string",
        "enum": [
          "preserve",
          "upper",
          "lower"
        ],
        "default": "preserve"
      },
      "dataTypeCase": {
        "type": "string",
        "enum": [
          "preserve",
          "upper",
          "lower"
        ],
        "default": "upper"
      },
      "expressionWidth": {
        "type": "integer",
        "default": 50
      },
      "linesBetweenQueries": {
        "type": "integer",
        "default": 1
      },
      "logicalOperatorNewline": {
        "type": "string",
        "enum": [
          "before",
          "after"
        ],
        "default": "before"
      },
      "leadingComma": {
        "type": "boolean",
        "default": false
      },
      "newlineBeforeSemicolon": {
        "type": "boolean",
        "default": false
      }
    }
  },
  "page": "/"
}

diff_textAction

Compare two text blocks and return a unified-diff patch (git-style). Configurable whitespace and case sensitivity. Optionally returns a structured JSON shape with hunks + stats instead of the patch text.

View tool JSON

{
  "name": "diff_text",
  "kind": "act",
  "impl": "imperative",
  "description": "Compare two text blocks and return a unified-diff patch (git-style). Configurable whitespace and case sensitivity. Optionally returns a structured JSON shape with hunks + stats instead of the patch text.",
  "inputSchema": {
    "type": "object",
    "required": [
      "left",
      "right"
    ],
    "properties": {
      "left": {
        "type": "string",
        "description": "Original / 'a' side of the diff."
      },
      "right": {
        "type": "string",
        "description": "Changed / 'b' side of the diff."
      },
      "ignoreTrailingWhitespace": {
        "type": "boolean",
        "default": true
      },
      "ignoreWhitespace": {
        "type": "boolean",
        "default": false
      },
      "ignoreCase": {
        "type": "boolean",
        "default": false
      },
      "format": {
        "type": "string",
        "enum": [
          "unified",
          "structured"
        ],
        "default": "unified",
        "description": "'unified' returns a git-style patch string; 'structured' returns JSON with stats + hunks for programmatic consumers."
      },
      "leftLabel": {
        "type": "string",
        "description": "Optional filename for the `--- a/<label>` preamble."
      },
      "rightLabel": {
        "type": "string",
        "description": "Optional filename for the `+++ b/<label>` preamble."
      }
    }
  },
  "page": "/"
}

timestamp_convertAction

Parse a Unix timestamp (seconds/ms/µs) or ISO 8601 string and return every common representation: ISO, RFC 2822, Unix s/ms/µs.

View tool JSON

{
  "name": "timestamp_convert",
  "kind": "act",
  "impl": "imperative",
  "description": "Parse a Unix timestamp (seconds/ms/µs) or ISO 8601 string and return every common representation: ISO, RFC 2822, Unix s/ms/µs.",
  "inputSchema": {
    "type": "object",
    "required": [
      "input"
    ],
    "properties": {
      "input": {
        "type": "string",
        "description": "Unix timestamp or ISO 8601 string."
      },
      "timezone": {
        "type": "string",
        "description": "IANA timezone name (e.g. 'Europe/London'). Defaults to UTC.",
        "default": "UTC"
      }
    }
  },
  "page": "/"
}

utilyx_list_toolsAnswer

List every tool the site provides — slug, name, category, and human description. Use this to discover what's available before navigating or invoking.

View tool JSON

{
  "name": "utilyx_list_tools",
  "kind": "answer",
  "impl": "imperative",
  "description": "List every tool the site provides — slug, name, category, and human description. Use this to discover what's available before navigating or invoking.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  },
  "page": "/"
}

utilyx_goto_toolAction

Navigate the user to a specific site tool page in the same tab. Pass the tool slug (e.g. 'json-to-typescript'). Use utilyx_list_tools to discover slugs.

View tool JSON

{
  "name": "utilyx_goto_tool",
  "kind": "act",
  "impl": "imperative",
  "description": "Navigate the user to a specific site tool page in the same tab. Pass the tool slug (e.g. 'json-to-typescript'). Use utilyx_list_tools to discover slugs.",
  "inputSchema": {
    "type": "object",
    "required": [
      "slug"
    ],
    "properties": {
      "slug": {
        "type": "string",
        "description": "Tool slug, kebab-case."
      }
    }
  },
  "page": "/"
}

utilyx_set_themeAction

Set the site theme. Accepts 'light', 'dark', or 'system' (follow OS preference).

View tool JSON

{
  "name": "utilyx_set_theme",
  "kind": "act",
  "impl": "imperative",
  "description": "Set the site theme. Accepts 'light', 'dark', or 'system' (follow OS preference).",
  "inputSchema": {
    "type": "object",
    "required": [
      "theme"
    ],
    "properties": {
      "theme": {
        "type": "string",
        "enum": [
          "light",
          "dark",
          "system"
        ]
      }
    }
  },
  "page": "/"
}

page: Every page

page: `Every page`