4.8
Mimer
Fast, private, developer-first clipboard manager with type-aware history, ⌘K transforms, and history encrypted at rest.
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Overview
 A fast, private, developer-first clipboard manager for macOS — free and open source.** Named after *Mímir*, the Norse guardian of memory, Mimer lives in your menu bar, remembers everything you copy, and gets out of the way until you press ⇧⌘V — then it's a fast command palette that understands what you copied and can transform it on the spot. > Status: v0.5.0 — live. Notarized, Homebrew-installable, and auto-updating via > Sparkle. Website: mimer.hasanjafri.com · > See CHANGELOG.md for what's new and docs/ROADMAP.md for what's next.
Mimer is built on open-source principles to guarantee security, privacy, and full reproducibility. All sensitive data transformations run locally on your hardware with zero telemetry or unexpected cloud dependencies.
Key Technical Features & Capabilities
Type-aware — it knows a link from code from a color from a git SHA, and shows the right glyph (with a live swatch for colors).: Streamlined desktop functionality optimized for macOS and Windows.
⌘K transforms — reshape a clip in place with a live preview: case, slugify, Base64/URL, JSON pretty-print, JSON → TypeScript, decode a JWT, Unix ↔ ISO time, and more.
**Hover to read the whole clip — a preview card shows the full text (long clips keep their start *and* end, never just the start), formatted for what it is**: JSON re-wrapped, diffs coloured, a URL's host and tracking params picked out.
**Built for developers — scoped search (
type**: , app:, /regex/), a paste-stack, and ⌘O to open a commit / issue / file:line straight in your tools.Private by default — local-only, no telemetry, no subscription; history is encrypted at rest and detected secrets are masked on screen.: Streamlined desktop functionality optimized for macOS and Windows.
long clips elide the middle, never the ends — the tail is usually what tells two: High-performance integrated capability designed for native Mimer workflow.
JSON is re-wrapped for reading (whitespace only — key order and values are untouched),: Streamlined desktop functionality optimized for macOS and Windows.
the footer carries the shape and provenance: characters / words / lines, the app it came
Architecture & Technology Stack
Primary Languages: Swift, TypeScript
Frameworks & UI Runtime: SwiftUI / AppKit, Electron / Node.js
Build Systems & Tooling: pnpm / npm
Supported Platforms: macOS 12.0+ (Apple Silicon M1-M4 & Intel x86_64), Windows 10/11 x64, Linux
System Requirements
| Specification | Minimum Requirement | Recommended Specification |
|---|---|---|
| Operating System | macOS 12.0 Monterey / Windows 10 x64 | macOS 14.0+ Sonoma / Windows 11 x64 |
| Processor Architecture | Apple Silicon (M1+) or Intel Core i5 x64 | Apple Silicon Unified Memory (M2/M3/M4) |
| Memory (RAM) | 4 GB Unified RAM | 8 GB+ High-Speed RAM |
| Storage Space | 300 MB available local disk space | 1 GB+ SSD storage |
| GPU Acceleration | Metal 2 / DirectX 12 compatible | Apple Neural Engine / Vulkan capable |
Installation & Setup Guide
macOS Installation (Recommended)
1
Download the verified
.dmg release installer directly from CookApps.2
Open the disk image and drag Mimer.app into your
/Applications folder.3
Launch Mimer via Spotlight (
Cmd + Space) or Launchpad.Alternatively, install using Homebrew if available:
bash
brew install --cask hasanjafri/tap/mimer
Windows Installation
1
Download the official installer package (
.exe / .msi).2
Run the executable and follow the setup wizard.
3
Launch Mimer from the Start Menu or desktop shortcut.
Building from Source (Development Setup)
bash
git clone https://github.com/hasanjafri/Mimer.git cd Mimer swift build -c release
How to Use & Workflow
1
Application Launch & Workspace: Open Mimer to load the responsive native workspace.
2
Configuration & Preferences: Press
Cmd + , (macOS) or Ctrl + , (Windows) to configure hardware acceleration, custom directories, and display themes.3
Primary Operation: Drag-and-drop source files or input parameters directly into the central window.
4
Execution & Export: Initiate the processing pipeline and verify output files saved directly to your chosen local directory.
Troubleshooting & Common Issues
Problem: macOS Gatekeeper displays *"App is damaged and can't be opened"* or unnotarized developer notice.
Root Cause: macOS quarantine flag set on binaries downloaded outside the Mac App Store.
Resolution: Open Terminal and run:
bash
xattr -cr /Applications/Mimer.app
Alternatively, navigate to System Settings > Privacy & Security and select Open Anyway.
Problem: High memory consumption during batch processing operations.
Root Cause: Large media buffers retaining uncompressed state.
Resolution: Adjust batch concurrency in settings or process assets in focused batches.
How to Use & Getting Started
## Installation & Setup Guide
### macOS Installation (Recommended)
1. Download the verified `.dmg` release installer directly from CookApps.
2. Open the disk image and drag **Mimer.app** into your `/Applications` folder.
3. Launch Mimer via Spotlight (`Cmd + Space`) or Launchpad.
Alternatively, install using Homebrew if available:
```bash
brew install --cask hasanjafri/tap/mimer
```
### Windows Installation
1. Download the official installer package (`.exe` / `.msi`).
2. Run the executable and follow the setup wizard.
3. Launch **Mimer** from the Start Menu or desktop shortcut.
### Building from Source (Development Setup)
```bash
git clone https://github.com/hasanjafri/Mimer.git
cd Mimer
swift build -c release
```
Ready to run Mimer?
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