HeliBoard

Tired of Keyboards That Mine Your Data or Clutter Your Screen?

Most default Android keyboards are either packed with ads, require an always-on internet connection, or send your keystrokes to third-party servers. If you value your privacy but refuse to compromise on typing speed and accuracy, you need a tool that works entirely on your terms—and entirely offline. HeliBoard is the open-source Android keyboard that delivers a secure, distraction-free typing environment without sacrificing modern features or customization.

A Privacy-First Keyboard That Works Offline

HeliBoard processes every single keystroke directly on your device. No data is ever transmitted to external servers, meaning your passwords, messages, and personal notes stay exactly where they belong—on your phone. This local-only architecture also means the keyboard functions flawlessly without an internet connection. Whether you're on a plane, in a remote area, or simply trying to minimize background data usage, HeliBoard remains fully operational. The entire input pipeline—from gesture typing to autocorrection—runs locally, ensuring zero latency and complete data sovereignty.

Open-Source Foundation with Full Transparency

Built on an open-source codebase, HeliBoard allows anyone to audit its behavior. There are no hidden telemetry modules, no analytics SDKs, and no third-party trackers. The developer, Helium314, maintains a clean, community-verified build that respects Android's permissions model. You can verify the app's behavior through its public repository, giving you absolute control over what runs on your device.

Smart Suggestions and Multilingual Support

HeliBoard supports multiple languages with seamless switching. You can add custom dictionaries for emoji, scientific symbols, or specialized vocabulary. The prediction engine learns from your typing patterns without sending data to the cloud, offering context-aware suggestions that improve over time. The spell-check system is fully customizable—you can enable or disable specific dictionaries, adjust correction aggressiveness, and even import external word lists.

Clipboard History and Gesture Typing

Unlike bare-bones open-source keyboards, HeliBoard includes a built-in clipboard manager that remembers your copied text history. You can access recently copied items, pin frequently used snippets, and clear the history with a single tap. Gesture typing (swipe-to-type) is supported, with configurable gesture sensitivity and trail visualization. The engine handles complex swipe patterns across multiple languages, making it a viable alternative to proprietary swipe keyboards.

Full Visual Customization Without Bloat

HeliBoard lets you modify every visual element without installing third-party themes. You can adjust:
- Key press popup size and color
- Keyboard height and number row visibility
- Long-press duration and action mapping
- Emoji style (default or system emoji)
- Background transparency and border radius

All settings are applied in real-time, with no reloads or restarts required. The theme engine supports both light and dark modes, automatically following your system preference if desired.

No Ads, No Upsells, No Nonsense

HeliBoard contains zero advertisements. There are no banner ads, no interstitial popups, and no sponsored suggestions. The entire experience is clean, focused, and designed for productivity. The app does not require any network permissions—it simply works as a keyboard, nothing more.

Key Features at a Glance

• 100% offline operation – no internet required for typing, predictions, or spell-check
• Open-source code – fully auditable, no hidden data collection
• Multi-language support – add dictionaries for emoji, science, or custom vocab
• Built-in clipboard manager – view, pin, and clear copied text history
• Gesture typing – swipe-to-type with adjustable sensitivity and trail feedback
• Customizable appearance – adjust height, popup style, number row, and theme
• Local spell-check – configurable autocorrection and word suggestions
• No ads or in-app purchases – completely free and unrestricted
• Lightweight APK – minimal storage footprint, no background services

Download HeliBoard Now – Your Private, Offline Keyboard

Stop letting keyboard apps harvest your data or flood your screen with ads. Install HeliBoard today and experience a typing tool that respects your privacy, works offline, and puts every setting in your hands. Get the APK now and take control of your input.

Heads up: you'll need to enable the keyboard in your system settings after installation. Some advanced features like custom dictionaries require manual setup. No internet or account is needed for core functionality.