Neon Vision Editor

A lightweight, modern editor focused on speed, readability, and automatic syntax highlighting.

Minimal by design: quick edits, fast file access, no IDE bloat.

h3p apps is a focused portal for product docs, setup guides, and release workflows: >h3p apps

Release Download: GitHub Releases

Status: active release
Latest release: v0.4.32 Platform target: macOS 26 (Tahoe) compatible with macOS Sequoia Apple Silicon: tested / Intel: not tested

What's New Since v0.4.32

• iPad toolbar keeps key actions visible more consistently (Settings, Search, Project Sidebar, Markdown Preview).
• iPad Markdown Preview now auto-prioritizes preview space by collapsing the project sidebar when needed.
• Settings polish on iOS/iPad: improved German localization coverage, centered tab headers, and cleaner card grouping.
• macOS top-left window controls are more stable during settings/tab transitions.

Platform Matrix

Availability legend: Full = complete support, Partial = available with platform constraints, No = currently unavailable.

Capability	macOS	iOS	iPadOS	Notes
Fast text editing + syntax highlighting	Full	Full	Full	Optimized for regular and large files.
Markdown preview templates	Full	No	Full	Presets: Default, Docs, Article, Compact.
Project sidebar	Full	Full	Full	Folder tree + nested structure rendering.
Quick Open (Cmd+P)	Full	Partial	Full	iOS requires hardware keyboard for shortcut use.
Bracket helper	Full	Full	Full	macOS: toolbar helper, iOS/iPadOS: keyboard snippet bar.
Settings tabs + grouped cards	Full	Full	Full	Localized UI with grouped preference cards.

Download

Prebuilt binaries are available on GitHub Releases.

• Latest release: v0.4.32
• Apple AppStore On the AppStore
• TestFlight beta: Join here
• Architecture: Apple Silicon (Intel not tested)
• Notarization: is finally implemented

Getting Started (30 Seconds)

1. Install using curl or Homebrew (below), or download the latest .zip/.dmg from Releases.
2. Move Neon Vision Editor.app to /Applications.
3. Launch the app.
4. Open a file with Cmd+O.
5. Use Cmd+P for Quick Open and Cmd+F for Find & Replace.
6. Toggle Vim mode with Cmd+Shift+V if needed.

Install

Quick install (curl)

Install the latest release directly:

curl -fsSL https://raw.githubusercontent.com/h3pdesign/Neon-Vision-Editor/main/scripts/install.sh | sh

Install without admin password prompts (user-local app folder):

curl -fsSL https://raw.githubusercontent.com/h3pdesign/Neon-Vision-Editor/main/scripts/install.sh | sh -s -- --appdir "$HOME/Applications"

Homebrew

brew tap h3pdesign/tap
brew install --cask neon-vision-editor

Tap repository: h3pdesign/homebrew-tap

If Homebrew asks for an admin password, it is usually because casks install into /Applications. Use this to avoid that:

brew install --cask --appdir="$HOME/Applications" neon-vision-editor

Gatekeeper (macOS 26 Tahoe)

If macOS blocks first launch:

1. Open System Settings.
2. Go to Privacy & Security.
3. In Security, find the blocked app message.
4. Click Open Anyway.
5. Confirm the dialog.

Features

Core Experience

• Fast loading for regular and large text files.
• Tabbed editing with per-file language support.
• Automatic syntax highlighting for many languages and formats.
• Native Swift/AppKit editor experience.
• Multi-window workflow with focused-window commands.

Editing & Productivity

• Inline code completion with Tab-to-accept ghost suggestions.
• Regex Find/Replace with Replace All.
• Optional Vim mode (basic normal/insert workflow).
• Starter templates for all languages with one-click insert.
• Curated built-in editor themes (Dracula, One Dark Pro, Nord, Tokyo Night, Gruvbox, Neon Glow).

Markdown

• Native Markdown preview (macOS + iPad) with template presets (Default, Docs, Article, Compact).
• iPad toolbar keeps key actions visible more consistently, including Markdown Preview.

Projects & Files

• Project tree sidebar plus Quick Open (Cmd+P).
• Recursive project tree rendering for nested folders in the sidebar.
• Last-session restore now includes the previously opened project folder.
• Cross-platform Save As… command support (macOS, iOS, iPadOS).
• Document-type handling for .plist, .sh, and general text so Finder/iOS can route those files straight into the editor.

Settings & Support

• Cross-platform theme settings panel with improved settings organization.
• Optional support purchase flow (StoreKit 2) in Settings.
• iOS/iPad settings polish with improved German localization and centered tab headers.

Architecture & Reliability

• Full Flux/command-pattern action flow for deterministic editor command handling.
• Swift 6 concurrency hardening across critical runtime paths.
• AI Activity Log diagnostics window on macOS for startup/provider visibility.
• Toolbar Map card in the welcome tour scales to fill a taller frame and keeps cards inside the border.
• No telemetry.

Visual Quick Links

• macOS main editor screenshot: docs/images/macos-main.png
• iPad Markdown Preview screenshot: docs/images/ipad-markdown-preview.png
• iPhone editor screenshot: docs/images/iphone-editor.png
• App Store gallery: Neon Vision Editor on App Store
• Latest release assets: GitHub Releases

Roadmap (Near Term)

• Improve iPad settings layout density and reduce scrolling friction. Tracking: #12
• Expand Markdown preview parity and interaction stability across Apple platforms. Tracking: #13
• Improve toolbar consistency and action discoverability across window sizes. Tracking: #14

Known Issues

• Open known issues (live filter): label:known-issue

Keyboard Shortcuts

Shortcut	Action
Cmd+N	New Window
Cmd+T	New Tab
Cmd+O	Open File
Cmd+S	Save
Cmd+W	Close Tab
Cmd+P	Quick Open
Cmd+F	Find & Replace
Cmd+Shift+V	Toggle Vim Mode
Cmd+Option+S	Toggle Sidebar
Cmd+Option+L	Toggle Line Wrap
Cmd+Shift+D	Toggle Brain Dump Mode
Tab	Accept code completion (when shown)

Changelog

Recent improvements (post-v0.4.32, in progress)

• iPad toolbar now keeps core actions visible more consistently (Settings, Search, Project Sidebar, Markdown Preview) with improved width adaptation.
• iPad Markdown Preview flow now prioritizes preview space by hiding the project sidebar when needed.
• iOS/iPad Settings polish: improved German localization coverage, centered tab header presentation, and cleaner section grouping/cards.
• macOS window-controls stability refinement to reduce top-left control jitter during settings/tab transitions.

v0.4.32 (summary)

• Added native macOS SettingsLink wiring for the menu bar entry so it opens the Settings scene through the system path.
• Improved macOS command integration by preserving the system app-settings command group and standard Settings routing behavior.
• Improved project-folder last-session restoration reliability by keeping security-scoped folder access active before rebuilding the sidebar tree.
• Fixed non-standard Settings shortcut mapping by restoring the macOS standard Cmd+, behavior.
• Fixed startup behavior when "Open with Blank Document" is enabled so launch always opens exactly one empty document.

v0.4.31 (summary)

• Added an AI Activity Log on macOS with a dedicated diagnostics window and menu entry to inspect startup/provider events.
• Added centralized macOS app command wiring for settings, AI diagnostics, updater, editor actions, and window-level command routing.
• Added a full Flux/command-pattern redesign completed in a parallel session.
• Improved release automation resiliency in scripts/release_all.sh with fail-fast gh auth checks, workflow/runner prechecks, stricter workflow status handling, and retryable asset verification.
• Improved settings startup behavior to preserve user-selected tabs/preferences and avoid redundant refresh work when opening Settings.

v0.4.30 (summary)

• Added a native macOS Markdown preview web view with template presets (Default, Docs, Article, Compact) and toolbar access.
• Added richer Markdown-to-HTML rendering for headings, lists, blockquotes, code fences, links, and inline formatting in preview mode.
• Improved Markdown code-block typography/spacing in preview so fenced blocks render with tighter, editor-like line density.
• Improved editor-to-binding synchronization safeguards while the text view has focus to prevent stale-state overwrites during active interaction.
• Fixed cursor/caret jump regressions where selection could unexpectedly snap to a much earlier position after paste/update timing races.

Full release history: CHANGELOG.md

Known Limitations

• Intel Macs are not fully validated.
• Vim support is intentionally basic (not full Vim emulation).
• iOS/iPad editor functionality is still more limited than macOS.

Privacy & Security

• Privacy policy: PRIVACY.md.
• API keys are stored in Keychain (SecureTokenStore), not UserDefaults.
• Network traffic uses HTTPS.
• No telemetry.
• External AI requests only occur when code completion is enabled and a provider is selected.
• Security policy and reporting details: SECURITY.md.

Release Integrity

• Tag: v0.4.32
• Tagged commit: 1c31306
• Verify local tag target:

git rev-parse --verify v0.4.32

• Verify downloaded artifact checksum locally:

shasum -a 256 <downloaded-file>

Release Policy

• Stable: tagged GitHub releases intended for daily use.
• Beta: TestFlight builds may include in-progress UX and platform polish.
• Cadence: fixes/polish can ship between minor tags, with summary notes mirrored in README and CHANGELOG.md.

Requirements

• macOS 26 (Tahoe)
• Xcode compatible with macOS 26 toolchain
• Apple Silicon recommended

Build from source

git clone https://github.com/h3pdesign/Neon-Vision-Editor.git
cd Neon-Vision-Editor
open "Neon Vision Editor.xcodeproj"

Contributing Quickstart

Contributor guide: CONTRIBUTING.md

git clone https://github.com/h3pdesign/Neon-Vision-Editor.git
cd Neon-Vision-Editor
xcodebuild -project "Neon Vision Editor.xcodeproj" -scheme "Neon Vision Editor" -destination 'platform=macOS,name=My Mac' build

Git hooks

To auto-increment Xcode CURRENT_PROJECT_VERSION on every commit:

scripts/install_git_hooks.sh

Support

If you want to support development:

• Patreon
• My site h3p.me

License

Neon Vision Editor is licensed under the MIT License. See LICENSE.