Code Recipes

7,000+ code examples in 20 languages. Tap Run and see the real output right in the app.

Ready-made code for everyday tasks in Swift, Python, C, C++, Java, C#, JavaScript, R, Rust, Golang, Delphi, PHP, Ruby, Objective-C, Kotlin, Lua, TypeScript, Clojure, Bash and SQL.

• 1,100+ topics, including strings, collections, files, networking, concurrency, regular expressions and design patterns.
• What changed in each version: over 1,000 new features across 175 language versions, with before-and-after code.
• Keyword and function reference for every language: over 4,200 articles. Browse, search, or tap a word in the code to open its article.
• SQL: 200+ queries (JOIN, GROUP BY, subqueries, data types); more than half run on a real practice database.
• Built-in Playground runs over 85% of examples. Requires an internet connection.
• Search covers the code itself, not just titles: type a fragment you remember and find the example.
• Edit examples or add your own; changes are saved in the app.
• Everything except running code works offline. No account needed.

Examples are curated from professional sources: the code works and is easy to follow.

FREE VERSION
• More than half of all examples
• 12 runs and 12 edits a day
• The entire keyword reference; tapping a word in the code opens up to 12 entries a day
• Up to 5 examples of your own per language

The full version unlocks every example and query, allows unlimited edits and examples of your own, and gives you up to 80 runs a day. One-time purchase, no subscription.

Built by a developer for developers. Maintained since 2015.