One tool for your daily dev tasks

DevKnife replaces browser tabs, CLI scripts, and scattered tools with one native Mac app.

Free 30-day trial. No sign-up or credit card needed.

Secure, fast, and offline

DevKnife is a native macOS app designed to work offline, ensuring your data stays private while providing seamless access to essential developer tools.

Everything you need. Right in your dock.

DevKnife brings a suite of essential tools directly to your dock, streamlining your workflow with native macOS performance.

JSON Editor & Formatter

Easily format, validate, and edit JSON data with a user-friendly interface that ensures readability and correctness.

Text Compare

Compare two blocks of text and instantly spot the differences. Highlight changes in a clear, side-by-side view.

JWT Decoder

Instantly decode JSON Web Tokens and view their header, payload, and signature in a clean, readable format.

IP Location

Find the geographical location of an IP address, including country, region, and city information, using a local MMDB-supported database.

Port Scanner

Scan ports to test connectivity, verify services, or check firewall settings.

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Loved by fellow devs

Real feedback from developers who’ve added DevKnife to their toolkit.

Venelin K.

@venelinkochev

This @devknifeapp is such a great tool. The JSON Editor and Text Compare are my favorites. I've been looking for a simple text compare tool for Mac for a long time, other features are just a great bonus. Adding this to my workflow!

Darrell Brogdon

@wonkavatormusic

I've been using @devknifeapp for a few days and it's amazing! This is the kind of craftsmanship I wish more products had.

Jul

@_julbd

Quick and useful dev helpers. Already on the free trial but I’m will buy the lifetime package—love how it solves real dev needs fast. Gave my feedback and would love to chat more.

Why developers choose DevKnife

Built for devs who want speed, simplicity, and control.

Native & Fast

Built for macOS with true native performance. No Electron, no lag. Just smooth tools that open instantly and feel at home on your Mac.

Privacy

Works completely offline and collects nothing. No telemetry, no analytics, no background connections. Your data stays yours.

One-time payment

Pay once and own it forever. No subscriptions, no hidden fees, no monthly surprises.

Lightweight

Small install size and low memory use. Runs fast without draining your Mac’s resources.

Download for macOS

Made for Apple Silicon · macOS 14 · Just 10 MB

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