Tools / Category
Test Design & Dev Utilities tools
Boundary values, pairwise, cron, hashes and more.
- Boundary Value Calculator Generate boundary value analysis (2-value, 3-value and 7-value) and equivalence partitions for numeric ranges, string lengths and date ranges. Export CSV.
- Pairwise Test Generator Generate an all-pairs (pairwise) test matrix from parameters and values. Supports exclusion constraints, verifies every pair is covered and exports CSV.
- Cron Expression Explainer Explain cron expressions in plain English and list the next run times in any time zone. Validates 5-field and 6-field cron, with GitHub Actions presets.
- Unix Timestamp Converter Convert Unix timestamps (seconds, ms, µs, ns) to ISO 8601 and readable dates in any time zone, and back. Auto-detects the unit and shows relative time.
- URL Encoder / Decoder URL encode and decode with encodeURIComponent, encodeURI or form (+) encoding. Parse query strings with repeated keys and break URLs into components.
- Hash & HMAC Generator Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files, and HMAC signatures to test webhooks. Hex or Base64 output. Runs locally.
- Text Diff Checker Compare expected and actual output online. Line, word or character diff with ignore-whitespace and ignore-case, side-by-side, unified and patch views.
- Test String Generator Generate test strings: counterstrings of exact length, Unicode edge cases (emoji ZWJ, RTL, combining marks), whitespace variants and input-validation probes.
- GitHub Actions Workflow Generator for Tests Generate a GitHub Actions workflow for Playwright (with sharding), Cypress, Selenium Java with Maven or pytest. Triggers, caching and report artifacts included.
- Gherkin Formatter and Linter Format Gherkin feature files online: consistent indentation, aligned Examples and data tables, doc strings kept intact, plus lint checks for missing Then steps.
- Test Estimation Calculator Estimate testing effort with three-point PERT (O+4M+P)/6 and standard deviation, a test-case work breakdown, or a percentage of dev effort. All formulas shown.