Utilities
Decompose an Objective into a weighted Department → Team → Personal tree with automatic progress roll-up. HTML tree + Markdown + CSV output.
okr-tree-decomposerPDF Tools
Add a visible typed or image signature block to selected PDF pages and download the signed copy
pdf-add-signature-onlineData Visualization
Render hierarchical JSON into a vertical organizational chart with names and titles
org-chart-makerText Processing
Check if text is a pangram (contains every letter of the alphabet). Reports missing letters, used letters, and unique-letter count.
pangram-checkerDevelopment
Audit a package.json for dependency hygiene, version-range quality, and optionally inspect a transitive dependency tree from package-lock.json or yarn.lock. Flags duplicates, wildcard or pre-release specs, unsorted keys, missing metadata, and misclassified runtime/dev dependencies.
package-json-dependency-auditorMath & Numbers
Determine the limiting reagent and compute theoretical yield, actual yield, and percent yield from a balanced reaction.
reaction-stoichiometry-calculatorSecurity
Generate cryptographically secure one-time numeric codes (SMS / email verification, raffle codes, event pins) with configurable length (3-10 digits), bulk output, optional ambiguous-digit exclusion, and an optional expiry countdown. Uses crypto.randomInt, not Math.random.
otp-generatorSecurity
Estimate real password strength with Shannon entropy, zxcvbn pattern matching (l33t, dictionary, sequences, repeats) and brute-force crack-time across attack scenarios (offline fast/slow hash, online). The password is evaluated locally and never sent anywhere.
password-strength-meterDevelopment
A searchable, localized cheat sheet for regular expression syntax — character classes, anchors, quantifiers, groups & references, lookarounds, escape sequences, and flags — with a built-in quick tester
regex-cheat-sheetDevelopment
Step through how a regular expression matches a string position by position: visualize match attempts, partial successes, backtracks, and captures — a learning tool for understanding regex behavior, not just the final result
regex-debuggerMath & Numbers
Solve for two unknowns among Voltage, Current, Resistance and Power from any two given values, with visual triangles and AC power-factor support
ohms-law-calculatorValidation
Validate OpenAPI 3.0/3.1 and Swagger 2.0 documents structurally: required fields, path/operation completeness, response codes, $ref resolution, operationId uniqueness, and component integrity
openapi-validator