Leetcomete

Local-first, context-aware code autocomplete for competitive programming and online coding practice platforms.

Leetcomete adds VS Code-style code completion to the code editors you already use in the browser. It is local-first: the extension indexes the code in the current editor, ranks variables, parameters, functions, methods, classes, keywords, built-ins, and type-inferred members, and shows suggestions in a popup. There is no account, API key, remote model, telemetry, or source-code upload. FEATURES • 15 languages: Java, C, C++, Python, JavaScript, TypeScript, C#, Go, Rust, Kotlin, Swift, Ruby, PHP, Scala, and SQL. • Editor-aware integration: Monaco uses its native completion provider, so its popup, snippets, keyboard handling, and undo stack keep working. CodeMirror 5 and plain textareas use a caret-anchored popup. • Context-aware ranking: exact, prefix, camel-case, and fuzzy matching, with local-scope proximity and declaration-kind weighting. • Member suggestions after ., ->, and :: using local type inference for declarations such as String word, const items = [], let map = new HashMap<>(), and self.cache. • Keyboard-first: Tab or Enter accepts, arrows navigate, Escape dismisses, Ctrl+Space or Alt+/ triggers explicitly. • No duplicate characters: acceptance replaces exactly the typed prefix and restores the caret. • Optional keywords, built-ins, snippets, and member suggestions. • Light, dark, and auto themes. • Settings stored locally in chrome.storage.local; Chrome Sync is an explicit opt-in mirror for preferences only. COMPATIBILITY & WORKFLOW Leetcomete is designed for online coding platforms and competitive programming judges that use browser-based code editors such as Monaco, CodeMirror 5, or standard text areas. The extension integrates directly with the active editor to provide fast, relevant completions while preserving native keyboard shortcuts and undo history. Site layouts change over time; the toolbar popup always displays the detected editor, environment, and programming language so integration status is always transparent. CodeMirror 6 environments are actively detected and indicated as unsupported rather than degraded. PRIVACY The extension requests only the storage permission. Site access is scoped strictly to supported coding practice platforms through manifest content-script match patterns. Editor text is processed in memory and is not stored or transmitted. No analytics, ads, telemetry, remote code, or data sharing. See the privacy policy for details. REQUIREMENTS Chrome/Chromium 111 or newer. Reload a tab after installing or updating the extension so the content scripts are injected.