Free checkers and calculators for the rules that changed in 2026
Each tool runs in your browser on your own numbers or your own file — free, no account. The full version is a one-time licence.
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By rule and country
Most installed
Oracle JDK License Gate
VS Code extension
Finds the Java lines in your build that Oracle now bills for, and the free line that replaces each one
VS Code Marketplace: 271 installs
Free in the browser · full version $29 once
pyproject.toml Release Gate (PEP 639)
VS Code extension
19 date-aware checks on the [project] metadata that decides whether your next release uploads
VS Code Marketplace: 17 installs
Free in the browser · full version $29 once
Coverage Gate Lint
VS Code extension
Finds the coverage gates in your repo that can never fail a build
VS Code Marketplace: 15 installs
Free in the browser · full version $29 once
Firmware Release Gate for sdkconfig and prj.conf
VS Code extension
Finds the build-config lines that ship an ESP-IDF or Zephyr device with secure boot off, a debug port open, unsigned images or plaintext…
VS Code Marketplace: 14 installs
Free in the browser · full version $29 once
Linker Map Auditor - FLASH & RAM budget for GNU ld map files
VS Code extension
Read the .map your linker already wrote and see, in exact bytes, which object file is spending your FLASH and RAM - and by how much you…
VS Code Marketplace: 12 installs
Free in the browser · full version $29 once
Newest
Admin Dashboard UI Kit — DSAR Privacy Request Console (GDPR · CCPA · LGPD)
Figma kit
8 components, 30 variants for the admin screen where privacy requests get answered on time: GDPR one month, CCPA 45 days, LGPD 15 days from…
Free in the browser · full version $168 once
pubspec Publish Gate - pub.dev pre-publish check
VS Code extension
pubspec publish: 6 findings on the example pubspec.yaml, 10 rules from dart.dev
Free in the browser · full version $29 once
Lambda Package Size Budget - 250 MB check
VS Code extension
Lambda package size: measured MB per requirements.txt and package.json line against the 250 MB limit
Free in the browser · full version $29 once
Testimonial Submission Form with FTC Review Disclosures – 16 CFR Part 465 Staff and Reward Checks for US Businesses
WordPress plugin
The FTC Consumer Reviews and Testimonials Rule (16 CFR Part 465, in force since 21 October 2024) requires reviews by your staff or their…
Free in the browser · full version $60 once
Xcode 26 SDK Gate for GitHub Actions
VS Code extension
Xcode 26 App Store Connect SDK requirement: which Xcode each CI job really builds with, and the fix line
Free in the browser · full version $29 once
helm chart lint Chart.yaml - Helm 4 Release Gate
VS Code extension
Every broken Chart.yaml line with its replacement line, before Helm 3 security fixes end 2026-11-11
Free in the browser · full version $29 once
npm publish package.json gate: engines & SPDX
VS Code extension
Node 20 end of life, SPDX licence and provenance checks for package.json
Free in the browser · full version $29 once
NuGet Pack Gate — csproj licence, icon, TFM
VS Code extension
nuget pack csproj check for .csproj, .fsproj, .vbproj and Directory.Build.props: the sample Acme.Invoicing.csproj returns 6 findings (2…
Free in the browser · full version $29 once
composer.json Validate - PHP EOL Release Gate
VS Code extension
composer.json validate: end-of-life PHP floors and composer validate --strict fields, with the fix line
Free in the browser · full version $29 once
go.mod Release Gate: /vN suffix and go line check
VS Code extension
go.mod check before you tag: /v2 suffix, supported Go line, toolchain, replace, require
Free in the browser · full version $29 once
pypdf Migration Check - PyMuPDF AGPL Licence Gate
VS Code extension
Map every fitz / PyMuPDF line to its pypdf, pdfplumber or pypdfium2 replacement
Free in the browser · full version $29 once
gitlab-runner Compute Minutes Audit for GitLab CI
VS Code extension
Ranks every .gitlab-ci.yml job by GitLab.com cost factor and worst-case compute minutes, with the tags: line that moves it to your own…
Free in the browser · full version $29 once
Subscriptions and team keys
Every linter — annual keyTeam key — $149 onceAll prices