AI summary
Privacy-focused open-source keyboard forked from HeliBoard with optional AI proofreading and translation via Gemini, Groq, or OpenAI-compatible APIs. Features offline ONNX models, floating keyboard, touchpad mode, clipboard search with screenshot suggestions, text expander, and deep UI customization. Version 3.8.
Generated by AI. May contain inaccuracies.
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About this app
LeanType is a fork of HeliBoard - a privacy-conscious and customizable open-source keyboard based on AOSP/OpenBoard.
This fork adds optional AI-powered features using Gemini, Groq, and OpenAI-compatible APIs, offering a hybrid experience: a private, offline core with opt-in cloud intelligence.
What's New in LeanType 🤖 Multi-Provider AI - Proofread using Gemini, Groq (Llama 3, Mixtral), or OpenAI-compatible providers. Supports dynamic fetching of latest models directly from providers. 🛡️ Offline AI - Private, on-device proofreading and translation using ONNX models (Offline build only). 🌐 AI Translation - Translate selected text directly using your chosen AI provider, with a separate model selector. 🧠 Custom AI Keys - Assign custom prompts, personas (#editor, #proofread), and custom text labels/tags (showing as themed capsules) to 10 customizable toolbar keys. 📝 Text Expander - Built-in expansion tool supporting custom shortcuts and dynamic template variables (date, time, clipboard, custom placeholders). 🪟 Floating Keyboard - Detach the keyboard into a draggable window for seamless multitasking. Includes a persistent mode option to keep the keyboard floating. ⌨️ Dual Toolbar / Split Suggestions - Option to split suggestions and toolbar for easier access. 🖱️ Touchpad Mode - Swipe spacebar up to toggle touchpad with custom sensitivity controls, including full-screen laptop-style touchpad mode. 🎨 Modern UI - "Squircle" key backgrounds, refined icons, and polished aesthetics. 🔄 Google Dictionary Import - Easily import your personal dictionary words. ⚙️ Enhanced Customization - Force auto-capitalization toggle, reorganized settings, and more. 🕵️ Clear Incognito Mode - Distinct "Hat & Glasses" icon for clear visibility. 🔍 Clipboard Search & Undo - Search through your clipboard history directly from the toolbar, undo accidental item deletions, and fold/collapse pinned items by default to save space. 📸 Screenshot Suggestion & Clipboard - Suggests recently taken screenshots for quick sharing via the suggestion strip and saves them to your clipboard history. 🔎 Emoji Search - Search for emojis by name. Requires loading an Emoji Dictionary. 🔒 Privacy Choices - Choose Standard (Opt-in AI), Offline (Hard-disabled network, offline model load), or Offline Lite (Minimalist, no AI) versions.
What's new
- 🚀 Performance & Stability (v3.8.3 Core) ・Lag-Free Suggestions: Moved MediaStore queries to background threads. Uses a thread-safe @Volatile cache to instantly render screenshot previews with zero typing latency. ・OOM Prevention: Downsamples cached screenshots to a maximum 1024x1024 bounding box and compresses them as JPEG. Reduces cached image sizes by over 95%, eliminating memory crashes and scroll stutter in clipboard history. ・Active Clip Deletion: Swiping to delete an active item in clipboard history now clears the Android system's primary clipboard, preventing the OS clipboard listener from auto-restoring it on keyboard restart. ・Fault-Tolerant Coroutines: Integrated SupervisorJob to process-level scopes in the offline AI ModelHolder, protecting the loader from global scope cancellations. ・API Timeouts & Leaks: Set 5000ms timeouts on cloud model API endpoints to prevent network hangs. Removed an unused Context reference from T5Tokenizer to resolve a process-level memory leak.
- 🎨 Icon Customization & Themes ・Icon Packages: Added support for custom drawables in customize icons, immediate icon reload, and forced full theme reload on icon change. ・Classic Default: Set the classic clipboard icon as default, and added new slanted lines and clipboard slash icons.
- 📝 Clipboard UI/UX Enhancements ・Long Press to Clear: Clear history directly via long press on the clipboard clear button. ・Aesthetic Refinement: Polished pinned section styling and styled header layo
- 🐛 Bug Fixes ・Web Cursor Swipe: Fixed horizontal cursor swipe gestures in web/input fields. ・System Copy Fallback: Uses the system copy fallback logic when text selection copying fails in specific apps. ・Double-Space Combiner: Preserves the double-space countdown timer on the text combiner. ・Swipe Deletion Crash: Resolved a rare crash when swiping items in the clipboard list. ・Localization: Updated Russian translations in strings.xml.
- ⚠️Notes： Take a backup of your clipboard before updating We're working hard to make our apps the best they can be. We are entirely funded by the community, please consider becoming a sponsor, Thank you to all our current supporters!
About this version
- Version
- 3.8.3 (3830)
- Size
- 49.25 MB
- Requires Android
- 5.0
- Target SDK
- 21
- Architecture
- armeabi-v7a, arm64-v8a
- Downloads
- 58
- Updated
- Jun 1, 2026
- Package
- com.leanbitlab.leantype.offline
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