Security
Scan one or more regex patterns for catastrophic backtracking risk, simulate evil inputs, and suggest safer rewrites
redos-regex-scannerDevelopment
Compare OpenAPI or GraphQL schemas, flag breaking changes, and generate an impact-oriented change report for API teams
openapi-diff-breach-detectorDevelopment
Convert OpenAPI or Swagger JSON/YAML specs into TypeScript API types, request payloads, and response models with configurable output and naming styles
openapi-to-typescript-generatorMath & Numbers
Calculate z-scores, cumulative probability, tail probability, and interval probability for a normal distribution
normal-distribution-calculatorMath & Numbers
Run simple linear regression on paired numeric data and inspect slope, intercept, correlation, and predictions
regression-calculatorPDF Tools
Attempt to repair damaged PDF headers and broken/missing XRef tables
pdf-repair-corruptPDF Tools
Place document pages on top of stationery/background template pages (letterhead style underlay)
pdf-stationery-underlayPDF Tools
Render PDF pages into high-fidelity image sequences (PNG/JPG/WebP) with configurable DPI and page range
pdf-rasterize-pagesPDF Tools
Extract embedded tracking ID and page serial values from tracked PDF files
pdf-usage-tracking-id-readerPDF Tools
Set PDF open password and permission restrictions (printing/copying)
pdf-password-protectorPDF Tools
Cover sensitive areas with black boxes during PDF rendering output
pdf-redaction-helperPDF Tools
Embed near-invisible tracking ID/serial into page corners for distribution tracing
pdf-usage-tracking-id