FoldCode

Spec sheet

Product

FoldCode is a native, offline-capable Android development environment combining an editor, terminal, build tools, language intelligence, debugging, Git, web preview, and Raspberry Pi Pico development.Read 11 Oct 2026 · github.com

Integrations

The README names HTTPS Git operations, npm and pip, CMake project dependencies, and Raspberry Pi Pico hardware flashing as supported connections or workflows.Read 4 Oct 2026 · github.com

Privacy

The README says FoldCode includes no advertising, analytics, or telemetry SDKs and has Android application backup disabled.Read 11 Oct 2026 · github.com

License

The repository lists the Apache-2.0 license.Read 11 Oct 2026 · github.com

Maker

The repository credits copyright to Myroslav Poliakov.Read 4 Oct 2026 · github.com

Availability and license

The maker provides a signed Android APK and extension packages through a GitHub release, and the project is licensed under Apache License 2.0.Read 4 Oct 2026 · github.com

Builds and Git

FoldCode supports on-device builds and execution without a remote build service, plus local Git repositories and HTTPS Git operations.Read 11 Oct 2026 · github.com

Device coverage

The 1.0.0 release was tested primarily on a Samsung Galaxy Z Fold 5; other ARM64 phones, foldables, tablets, and desktop modes had less device-specific coverage.Read 11 Oct 2026 · github.com

Editor

The editor supports multiple tabs, split editing, syntax highlighting, diagnostics, completion, breakpoints, and mouse and keyboard input.Read 11 Oct 2026 · github.com

Extensions

Language runtimes and toolchains are installed from locally selected .fcex files; the public release has no extension marketplace or distribution server.Read 11 Oct 2026 · github.com

Git and web

FoldCode supports local Git repositories, HTTPS Git operations, a local WebView browser, and web project previews.Read 4 Oct 2026 · github.com

Language packages

Optional extensions provide C/C++, Python, Rust, web development, GNU Arm Embedded, Fortran and COBOL, and Raspberry Pi Pico toolchains.Read 4 Oct 2026 · github.com

Languages

Its listed development support includes C/C++, Python, Rust, Fortran, COBOL, and web development.Read 11 Oct 2026 · github.com

Local development

Builds and execution run on the device without a remote build service, and editing and local builds can work offline after extensions and project dependencies are installed.Read 4 Oct 2026 · github.com

Network

Editing and local builds work offline after required extensions and project dependencies are installed; internet access supports user-initiated features such as HTTPS Git, npm, and pip.Read 11 Oct 2026 · github.com

Network security

The release APK rejects external cleartext network traffic, allows loopback HTTP for local previews, and keeps WebView remote debugging off unless an active IDE browser-debug session is explicitly started.Read 4 Oct 2026 · github.com

Package validation

FoldCode validates extension manifests, legal metadata, payloads, paths, byte counts, checksums, and minimum host version before activating a package.Read 4 Oct 2026 · github.com

Permissions

The release requires Android All files access for its shared project workspace; USB host/OTG is required only for Pico USB flashing.Read 11 Oct 2026 · github.com

Pico development

Raspberry Pi Pico features include Pico SDK workflows, CMake/Ninja builds, MicroPython, UF2 generation, and USB flashing.Read 11 Oct 2026 · github.com

Pico features

Pico support includes CMake/Ninja builds, MicroPython, UF2 generation, and USB flashing when the Android device supports USB host/OTG.Read 4 Oct 2026 · github.com

Release

The 1.0.0 release provides a signed ARM64 Android APK and downloadable extension packages.Read 11 Oct 2026 · github.com

Requirements

FoldCode requires Android 8.0 or newer, an ARM64 device, and enough storage for selected extensions and build caches.Read 11 Oct 2026 · github.com

Requirements and limits

FoldCode 1.0.0 requires Android 8.0 or newer on an ARM64 device and All files access for its shared workspace; Android 11 and newer require granting that special permission.Read 4 Oct 2026 · github.com

Supported work

FoldCode supports C/C++, Python, Rust, web development, and Raspberry Pi Pico projects.Read 4 Oct 2026 · github.com

Web development

The Web Development extension includes Node.js, npm, TypeScript, React, Vite, HTML/CSS/JSON intelligence, WebView preview, and JavaScript debugging.Read 11 Oct 2026 · github.com

Where Specifiction places it

• Mobile Development IDEs#31 of 417.4