Levelbrook Developer Tools
The developer tools you rely on were abandoned, or turned against you. We maintain ours, we do not track you, and we will never take away a feature you already had.
These extensions are built, tested and packaged, but none of them is on the VS Code Marketplace, Open VSX or the Chrome Web Store today, so there is nothing to install from this page yet. The purchase links work, and a licence bought now activates the moment the extension ships. If you would rather be told when that happens, mail team@levelbrook.com.
Paid tools
Each one is free to use for real work. Pro adds a power layer on top — it never takes back a feature the free tier had. Every purchase is a perpetual licence or a monthly subscription, your choice, with a 14-day trial that needs no account and no email address.
These install into VS Code, and into any editor that reads Open VSX — Cursor, Windsurf, VSCodium.
Your coding time never leaves your machine.
A coding time tracker with no account, no server, no signup and no telemetry. Your data is a plain text file in your own home directory.
Replaces the 23-million-install hosted time tracker.
Point it at your existing .http files. Everything works.
A maintained, telemetry-free HTTP client for .http and .rest files — and it fixes self-signed localhost HTTPS.
Replaces an HTTP client abandoned in 2022, and a paywalled successor.
The Git graph you loved, maintained again.
A fast, clean-room Git commit graph for VS Code. The graph and every graph action are free forever. Measured on an 85,543-commit repository.
Replaces a 15.2-million-install graph abandoned since April 2021.
A real accessibility audit, mapped to the line that caused it.
Run an axe-core WCAG 2.2 audit on any file, dev server or URL from inside VS Code, and generate a client-ready EN 301 549 / EAA report.
Replaces accessibility overlays that cost $490–$3,990 a year and fix nothing.
A browser extension, not an editor one. It installs into Chrome, and into any Chromium browser that accepts a Manifest V3 extension — so it is a different store, a different install, and a different privacy policy.
Are AI answer engines citing your site?
Measures whether AI answers mention and cite your brand, using your own API key. No account, no server of ours, and we never see your key, your prompts or your results.
Replaces AI-visibility trackers charging $29–$489 a month to run the same queries on their own infrastructure.
Free, with no paid tier at all
These replace tools with tens of millions of installs between them that have not shipped a release in years. They have no Pro tier and never will. They are how people find the rest of what we build, and that is the entire business case for them.
Run the current file or a selected snippet in 40+ languages. A maintained, zero-telemetry alternative to Code Runner. Makes no network requests, ever.
Colourised indentation guides that stay correct on every platform. Uses your file's real tab size, diagnoses mixed tabs and spaces, and updates in 0.5ms inside a 12,000-line file. No telemetry.
The argument
Every claim below is about a publicly listed extension, and every number is from its own marketplace listing or its own issue tracker. We did not invent any of it, and we do not need to.
.http client has 7.5M
installs at 4.91★ and has been unmaintained since
2022.Those five facts are the entire market opportunity, and the only durable answer to them is a promise that is cheap for us to keep and impossible for the incumbents to copy, because they have already broken it.
Buy once and you get a licence key. The extension verifies it offline against an Ed25519 signature, so it keeps working on a plane, behind a corporate proxy, or if this company disappears tomorrow.
The only network request any of these extensions ever makes on your behalf is the one that activates a key you personally typed in. There is no usage ping to switch off, because there is not one.
Every product page on this site names what is not finished, what has not been tested, and what was cut — in the same page that asks you for money.
We do not publish install counts, customer counts or testimonials, because we do not have any yet, and inventing them would destroy the exact thing this brand is built on.