The Developer Memory Layer
Built for Mac

Search clipboard history, shell commands, OCR screenshots, Claude Code and Codex sessions—100% locally. Format JSON, decode JWTs, and scrub sensitive secrets with private on-device intelligence.

Keep the useful parts of your work searchable

Find the command, coding session, or copied snippet you remember without losing the clipboard tools developers already use L2Cache for.

Mac Command History

View and search terminal commands

Claude Code History

Find previous coding sessions

Codex History

Search past Codex CLI sessions

Developer Zwischenablage

Format, decode, OCR, and find copied items

0 Bytes
an Clip-Inhalten,
die an einen Server gesendet werden
100ms
Öffnen des Panels,
jedes Mal
Unbegrenzt
Zwischenablage-Verlauf
auf Ihrem Mac
4,99 €
Einmalkauf
lebenslanger Zugriff

Built for code.
Not just text.

L2Cache doesn't just store strings. It understands code, extracts errors, and connects context. Scroll through to see each tool in action.

Read the Developer Guide Explore 66+ Kostenlos In-Browser Tools (Fancy QR, Mermaid, Session Viewer) →

Decode JWTs & Format JSON

Click any raw JWT or minified JSON to instantly decode and format it on-device. No more pasting into random browser tabs.

OCR for Stack Traces

Someone sent a screenshot of an error? Copy it. L2Cache extracts the text instantly using Apple's Vision framework.

Terminal History

L2Cache detects terminal output and automatically extracts the root command (like docker, git, or npm) to tag your clips, making it easy to filter, find, and replay your past commands.

KI Agent Session History

Every Claude Code and Codex CLI session is captured in your clipboard history — prompts, responses, token usage, and cache hit rates. Review, search, and replay your KI coding sessions without leaving your workflow.

KI Data Generation

Select a SQL schema or Swift struct and run an KI prompt directly inside the clipboard to generate mock data instantly.

Programmable Zwischenablage

View Recipes →

L2Cache lets you create custom actions in Bash or Ruby. Target actions dynamically based on content types like SQL, Docker, YAML, or GraphQL. Format, fetch, or filter copied text entirely on-device.

From Raw Data to Usable Code

Ordinary clipboards merely store raw data like unprocessed ore. L2Cache works as a miner, instantly refining that material into polished, ready‑to‑use gold.

Standard Zwischenablages
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
L2Cache
{ "header" : { "alg" : "HS256", "typ" : "JWT" }, "payload" : { "iat" : 1516239022, "name" : "John Doe", "sub" : "1234567890" }, "signature" : "SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c", "verified" : false }

Die Zwischenablage,
die Sie immer wollten

Jede Kopie gespeichert, verstanden und bereit, wenn Sie sie brauchen.

🧠
KI-generierte Titel
Code-Clips zeigen, was der Code tut, nicht in welcher Sprache er geschrieben ist. „Benutzer authentifizieren und Sitzung im Schlüsselbund speichern“ – nicht „Swift-Funktion“.Erfordert macOS 15.1+ und Apple Silicon. Auf anderen Macs werden Nur-Text-Titel verwendet.
⚡
Intelligente Transformation
Kopieren Sie intelligenter. Transformieren Sie Ihre Zwischenablage beim Kopieren — entfernen Sie Markdown-Begrenzungen, korrigieren Sie Grammatik, konvertieren Sie Code, bereinigen Sie URLs, formatieren Sie JSON.KI-gestützte Transformationen erfordern macOS 15.1+ und Apple Silicon. Lokale Sofort-Transformationen funktionieren auf jedem unterstützten Mac.
🍎
Apple Intelligenz
Wird lokal auf dem Gerät mithilfe von Apples Grundlagenmodell ausgeführt. Standardmäßig privat — Ihre Zwischenablage verlässt Ihren Mac nie.Apple Intelligenz erfordert macOS 15.1+ und Apple Silicon. Die grundlegenden Zwischenablagefunktionen funktionieren auf macOS 13+ in jedem Fall.
📝
Screenshot OCR
Instantly extract and copy text from any screenshot or image using on-device optical character recognition.
🛠
SQL Mock Data Gen
Copy a SQL schema and let Apple Intelligenz instantly generate mock CSV or JSON test data directly on your clipboard.
🔍
Alles durchsuchen
Volltextsuche in allen Clips. Screenshots sind per OCR nach ihrem Textinhalt durchsuchbar. Finden Sie alles in weniger als 100 ms.
🛡
Sensibles Radar
API-Schlüssel, Kreditkartennummern, private Schlüssel, Sozialversicherungsnummern und WLAN-Zugangsdaten werden automatisch erkannt und verborgen gespeichert. Inhalte bleiben gesperrt — entsperren Sie sie mit Touch ID oder Ihrem Passwort, um sie zu kopieren.
🔍
Regex pattern matching
Type standard Regular Expressions to filter your massive clipboard history natively. Instantly find AWS keys, IP addresses, or UUIDs using terminal grep-like syntax.
🗂
Intelligente Alben
Clips werden automatisch nach Typ und Kontext in Alben gruppiert — Code, URLs, Bilder und mehr. Durchstöbern Sie Alben, um verwandte Clips sofort zu finden.
📱
QR-Code-Generierung
Kopieren Sie eine beliebige URL, Text oder Kontaktdaten und generieren Sie mit einem Klick einen QR-Code. Teilen Sie sofort ohne zusätzliche App.
🖼
Screenshots umbenennen
Screenshots werden mithilfe von KI automatisch umbenannt — nie wieder „Screenshot 2025-06-18 at 10.34.02“. Finden Sie Ihre Screenshots anhand ihres tatsächlichen Inhalts.
Wall of Love

Developers love L2Cache

Don't just take our word for it. Here is what engineers are saying.

★★★★★

"This is hands down the best clipboard manager for engineers. The ability to pipe my clipboard directly into a Ruby script without leaving my IDE is mind-blowing. It replaced Maccy for me."

S

Sarah J.

Senior Backend Engineer

★★★★★

"The Smart Actions are a game changer. Being able to extract a JWT payload or pretty-print JSON with a single shortcut saves me so much context switching every day."

M

Michael T.

Fullstack Developer

★★★★★

"Finally, a native macOS app that respects developers. It's incredibly fast, the SQLite search is instant, and the UI is absolutely gorgeous. Worth every penny."

D

David R.

iOS Engineer

Einfache, ehrliche Preise

No subscriptions. No recurring fees. Pay once, own forever — all future updates included.

4,99 €
Einmalkauf · lebenslanger Zugriff · alle Updates inklusive
Get L2Cache on the Mac App Store

macOS 13 Ventura or later · Universal Binary (Apple Silicon & Intel) · Pay once, own forever

From the L2Cache Blog

Technical guides on macOS engineering, SQLite performance, developer security, and on-device KI.

KI Coding Workflows

Tracking Claude Code & Codex CLI Sessions

How agent history, prompt cache ratios, and token analytics supercharge KI development.

Read Article →
Database Architecture

Preventing SQLite FTS5 Hangs on Large Datasets

How we achieved sub-millisecond search across 100k+ clipboard entries using SQLite triggers.

Read Article →
Security & Privacy

Why Developer Tooling Needs On-Device KI

Why sending clipboard history to cloud LLMs risks leaking API keys, secrets, and auth tokens.

Read Article →
Developer Security

Why Pasting JWTs Online is a Security Risk

Why developers should decode and validate JSON Web Tokens offline on macOS.

Read Article →
Explore All Engineering Articles & Guides →
FAQ

Common Questions

How much does L2Cache cost? +
L2Cache is a $4.99 one-time purchase with lifetime access. Pay once, own forever — all future updates are included with no recurring subscriptions.
Does L2Cache keep my clipboard history private? +
Yes. L2Cache stores your clipboard history locally on your Mac and its KI runs entirely on-device using Apple Intelligenz. No clipboard content is ever sent to any server.
What Macs does L2Cache work on? +
L2Cache runs on macOS 13 Ventura or later. Core clipboard history and search work on any supported Mac; the on-device KI features (smart titles, Intelligente Transformation) require macOS 15.1+ on Apple Silicon.
How is L2Cache different from the built-in macOS clipboard? +
macOS only keeps the last copied item. L2Cache keeps unlimited history with full-text search, OCR search inside screenshots, smart albums, regex grep, JWT/JSON decoding, SQL data generation, custom scripts — and works back to macOS 13.