Exclusively for macOS 11+ • Apple Silicon

Lightning-Fast. Privacy-First. Screen Capture for Mac.

The lightweight menu bar utility built with Tauri v2 and Rust. Crop with sub-pixel precision, annotate with professional tools, and extract text instantly with on-device Apple Vision OCR.

Requires macOS 11.0 (Big Sur) or newer • 100% Free & Open Source • Zero Telemetry

EiSen Screen Capture Overlay
1920 × 1080 @ 2x Retina

// EiSen Core - Native Rust Capture Orchestrator

use objc2_app_kit::{NSApplication, NSImage};

pub fn capture_region(display_id: u32, crop: Rect) -> Result<CaptureResult> {

  let display = find_display_under_cursor(cursor_pos)?;

  let image = screencapture::capture_rect(crop)?;

  let text = vision::recognize_text_local(&image)?;

  Ok(CaptureResult { image, ocr_text: text })

}

840 × 460 | Retina
1 Select screen crop with pixel-level fine tuning
🔒 Redacted: sk_live_99812938472918237 Blur
T
Apple Vision OCR Copied to Clipboard!

"use objc2_app_kit::{NSApplication, NSImage};"

#6366F1 RGB(99, 102, 241)

Press ⌥⌥ anywhere to capture, crop, annotate, and copy in milliseconds.

100% Local
Zero network calls

No telemetry, no analytics, no cloud uploads. Everything stays strictly on your Mac.

Native Rust
Capture engine

Built with Rust and Tauri v2 for a snappy overlay and a small memory footprint.

Apple Vision
On-device OCR

Extract text from any capture offline, using on-device macOS Vision.

Menu Bar
No Dock clutter

Runs silently as an accessory app. Quick access to settings, history, and instant capture.

Engineered for Productivity

Everything you need to capture, annotate, and communicate.

No Electron, no subscriptions, no account. Capture, annotate, and copy — all on this Mac.

Capture Engine

Smart Crop & Instant Multi-Monitor Selection

Trigger with double-tap Option (⌥⌥) or a custom hotkey. EiSen targets the display under your cursor, lets you nudge the crop with arrow keys, and exports Retina-correct PNGs.

  • Global hotkeys: ⌥⌥ (Double Option), ⇧⇧ (Double Shift), ⌘⇧4, and more
  • Fine-tune crop dimensions with keyboard arrows
  • Multi-display aware with zero coordinate offset bugs
Annotation Suite

Pixel-Perfect Tools for Clear Visual Explanations

Turn raw screenshots into polished visuals in seconds. Every tool is tuned with high-DPI precision, smooth vectors, and modern dark glassmorphism styling.

  • Arrows, ellipses, rectangles, and smooth freehand pen with arrowheads
  • Numbered steps (1, 2, 3...) that increment automatically for tutorials & bug reports
  • Text markers with custom typography, font sizes, and rich color palette
Security & Redaction

Blur Sensitive Information in One Drag

Keep API tokens, passwords, credit card numbers, and private customer information safe. The smooth blur tool conceals data cleanly before you share.

  • Gaussian privacy blur baked into the exported PNG
  • Non-destructive undo and redo support
  • Exported PNGs never leak covered underlying data
Native OCR

Instant Text Extraction with Apple Vision

Stop retyping text from screenshots. Use OCR on a capture via the native macOS Vision framework and copy the result to the clipboard.

  • Fully on-device — no external APIs, works 100% offline
  • High-accuracy multi-language recognition
  • One-click copy to clipboard with toast confirmation
Color Inspector

Precision Eyedropper Loupe for Designers

Inspect colors down to the exact pixel with a magnified loupe. Copy the HEX code with a click or keyboard shortcut.

  • Live 11×11 pixel grid under the cursor
  • One-click HEX copy to the clipboard
  • Essential utility for UI/UX designers and frontend developers
History & Hub

In-Memory Session History at Your Fingertips

Review and re-edit your last 50 captures from the Menu Bar hub. EiSen keeps your workspace clean by keeping history in memory, sweeping temporary files automatically on app launch.

  • Quick re-open, copy, or delete from the gallery
  • Temporary files stored securely in owner-only sandbox directories
  • Temp PNGs are swept on launch; Save writes ordinary files you keep
Quick 1-Minute Setup

Up and running in three simple steps.

Because EiSen respects your privacy, macOS requires explicit Screen Recording permission before taking captures.

1

1. Download & Drag to Applications

Download the signed DMG, open it, and drag EiSen into your /Applications folder.

📁 /Applications/EiSen.app
2

2. Grant Screen Recording Permission

Open macOS System Settings → Privacy & Security → Screen Recording, and enable the toggle for EiSen.

⚙️ Privacy & Security → Screen Recording
3

3. Press ⌥⌥ and Start Capturing

EiSen sits silently in your menu bar. Double-tap Option (⌥⌥) anywhere to take your first capture!

Default: ⌥⌥ (Double Option)

💡 EiSen does not show a macOS permission prompt. Grant Screen Recording in System Settings, then quit from the menu bar and relaunch once.

Why EiSen?

How EiSen Compares.

All the powerful capabilities of professional screen capture tools while staying fully open-source and privacy-first.

Feature
EiSen Recommended
macOS Default (⌘⇧4) Proprietary Commercial Tools
Distribution Model 100% Free & Open Source Built-in macOS Utility Closed Source / Commercial
Privacy & Telemetry Zero Telemetry (100% Local) Apple Diagnostics Cloud Sync / Telemetry
Menu Bar Resident Yes (No Dock clutter) No Yes
Annotation Suite (Steps, Loupe, Blur) Yes (Full & Vector-based) Basic markup only Yes
On-Device Apple Vision OCR Yes (on-device, offline) Limited Live Text Yes
Account / License Key Required None (Zero onboarding) None Required / Account Sign-in
App Bundle Size ~4.1 MB (Ultra-light) System Dependent 40 MB - 100 MB
Got Questions?

Frequently Asked Questions

Why does EiSen require macOS Screen Recording permission?
To capture pixels outside of its own window, macOS security architecture requires explicit Screen Recording access. EiSen operates entirely on-device and never sends screenshots, OCR text, or analytics over the network.
Is EiSen compatible with Apple Silicon and Intel Macs?
Yes! The current release v0.1.0 is compiled specifically for Apple Silicon (M1, M2, M3, M4 and newer) on macOS 11.0+. Universal and Intel builds are supported by building from source or subsequent release updates.
How does the OCR feature work without an internet connection?
EiSen uses Apple's native Vision framework via high-performance Rust bindings. It leverages the Apple Neural Engine directly on your Mac, delivering blazing fast OCR without a single byte leaving your computer.
Why doesn't EiSen appear in my Dock?
EiSen is configured as a macOS Accessory Application. It lives quietly in your menu bar (status bar) at the top of your screen to stay out of your way until you need it.
How do I update to newer versions of EiSen?
To maintain zero background network activity, EiSen intentionally does not include an automatic background updater. Simply download the newest DMG release from GitHub or via eisen.a302.link/download.
EiSen
EiSen

Ready for a faster, cleaner screenshot workflow?

Get EiSen today. Free, open source, and built with love for the Mac.

Version 0.1.0 • Apple Silicon (aarch64) • 4.1 MB • macOS 11.0+

SHA256: 2f848f787035d353f42e0062f3df0bc4de0e938c22babcaa5c153b365c3f0b30