Reference & Lookup
5 reference and lookup tools for quick developer lookups. Browse HTTP status codes with RFC references, look up ASCII character codes, encode HTML entities, explore SQLite databases with a SQL editor, and test REST APIs with the HTTP client. All tools are free and run entirely in your browser.
HTTP Status
Complete HTTP status code reference with descriptions, RFC references, and usage guides. Covers all IANA-registered codes plus common unofficial codes.
HTTP Client
Send HTTP requests and test REST APIs directly in your browser. Supports GET, POST, PUT, DELETE with headers, body, and auth.
DB Viewer
Open SQLite databases, browse schema, run read-only SQL with autocomplete, paginate large result sets, and export to CSV or JSON.
ASCII Table
Complete ASCII character table with hex, octal, HTML, and decimal codes. Interactive reference with search and filtering.
HTML Code
Encode and decode HTML special characters and entities. Full reference with named, decimal, and hex entity codes.