# Developer Kits > Interactive demos and documentation for 40 focused TypeScript utility packages. ## Main pages - [Package catalog](https://packages.wasta-wocket.fr/): Browse every package by developer workflow. - [About, maintenance and support](https://packages.wasta-wocket.fr/about/): Verify the maintainer, data sources and support process. ## Topic hubs - [Data TypeScript utilities](https://packages.wasta-wocket.fr/data/): JSON, CSV, tables and object paths. - [Text TypeScript utilities](https://packages.wasta-wocket.fr/text/): Content parsing, matching and structured text. - [Web TypeScript utilities](https://packages.wasta-wocket.fr/web/): HTTP headers, robots.txt and browser-facing cleanup. - [Code TypeScript utilities](https://packages.wasta-wocket.fr/code/): Package metadata, imports, CSS and file names. - [Ops TypeScript utilities](https://packages.wasta-wocket.fr/ops/): Reports, logs, migrations and runtime diagnostics. - [Values TypeScript utilities](https://packages.wasta-wocket.fr/values/): Colors, prices, hashes, grids and forms. ## Data - [json-html-kit](https://packages.wasta-wocket.fr/json-html-kit/): Render JSON as safe, themed HTML that stays readable in docs, reports and support tools. - [array-table-kit](https://packages.wasta-wocket.fr/array-table-kit/): Turn arrays of objects into Markdown or HTML tables with explicit columns and clean escaping. - [json-csv-kit](https://packages.wasta-wocket.fr/json-csv-kit/): Convert JSON records to CSV with TypeScript-first options, safe escaping and nested data support. - [object-path-kit](https://packages.wasta-wocket.fr/object-path-kit/): Parse, normalize and safely access JavaScript object paths, including bracket notation. - [object-key-paths](https://packages.wasta-wocket.fr/object-key-paths/): List nested key paths from objects and arrays for schema inspection, mapping and docs. - [data-url-kit](https://packages.wasta-wocket.fr/data-url-kit/): Parse, validate and inspect data URLs with typed diagnostics, byte metadata and decoded output. ## Text - [text-similarity-kit](https://packages.wasta-wocket.fr/text-similarity-kit/): Compare and rank short strings with TypeScript-first fuzzy matching helpers. - [frontmatter-kit](https://packages.wasta-wocket.fr/frontmatter-kit/): Parse and inspect front matter with typed metadata, body ranges and readable diagnostics. - [svg-ast-kit](https://packages.wasta-wocket.fr/svg-ast-kit/): Parse SVG markup into a typed JSON AST with traversal, lookup and stats helpers. - [caption-track-doctor-kit](https://packages.wasta-wocket.fr/caption-track-doctor-kit/): Inspect SRT and WebVTT caption tracks with browser-focused diagnostics. - [human-duration-parse-kit](https://packages.wasta-wocket.fr/human-duration-parse-kit/): Parse compact human duration strings into milliseconds with structured tokens and diagnostics. - [number-range-list-kit](https://packages.wasta-wocket.fr/number-range-list-kit/): Parse integer range lists into safe expanded values, normalized segments and readable diagnostics. - [numeric-unit-parse-kit](https://packages.wasta-wocket.fr/numeric-unit-parse-kit/): Parse numeric values with units into structured amounts, normalized strings and readable diagnostics. ## Web - [http-cache-control-kit](https://packages.wasta-wocket.fr/http-cache-control-kit/): Parse and format HTTP Cache-Control headers with typed diagnostics for tooling and tests. - [http-accept-language-kit](https://packages.wasta-wocket.fr/http-accept-language-kit/): Parse, format and lightly match HTTP Accept-Language headers with typed diagnostics. - [http-link-header-kit](https://packages.wasta-wocket.fr/http-link-header-kit/): Parse, inspect and format HTTP Link headers with diagnostics and pagination helpers. - [robots-txt-kit](https://packages.wasta-wocket.fr/robots-txt-kit/): Parse and evaluate robots.txt crawl rules with structured diagnostics. - [har-redaction-kit](https://packages.wasta-wocket.fr/har-redaction-kit/): Redact sensitive fields from HAR files with deterministic reports for support handoffs. ## Code - [import-specifier-scan-kit](https://packages.wasta-wocket.fr/import-specifier-scan-kit/): Scan JavaScript source text for import, export, dynamic import and require specifiers. - [node-lockfile-doctor-kit](https://packages.wasta-wocket.fr/node-lockfile-doctor-kit/): Inspect Node package-manager lockfile consistency with structured diagnostics. - [package-author-parse-kit](https://packages.wasta-wocket.fr/package-author-parse-kit/): Parse package author, maintainer and contributor strings with stable diagnostics. - [css-font-shorthand-kit](https://packages.wasta-wocket.fr/css-font-shorthand-kit/): Parse and format CSS font shorthand values with structured diagnostics. - [css-media-query-match-kit](https://packages.wasta-wocket.fr/css-media-query-match-kit/): Parse and match small CSS media query lists with stable diagnostics. - [filepath-validator-kit](https://packages.wasta-wocket.fr/filepath-validator-kit/): Validate file path strings with portable, POSIX or Windows policies and structured diagnostics. - [file-extension-inspect-kit](https://packages.wasta-wocket.fr/file-extension-inspect-kit/): Inspect filename extensions with explicit dotfile, extensionless and compound-extension policies. ## Ops - [large-log-viewer-kit](https://packages.wasta-wocket.fr/large-log-viewer-kit/): Inspect and render large browser logs with offset indexing, virtual windows and chunked search. - [junit-report-doctor-kit](https://packages.wasta-wocket.fr/junit-report-doctor-kit/): Normalize JUnit XML reports with stable diagnostics for CI pipelines and test report uploads. - [lcov-trace-doctor-kit](https://packages.wasta-wocket.fr/lcov-trace-doctor-kit/): Inspect LCOV tracefiles with structured diagnostics and coverage summaries. - [systemd-unit-doctor-kit](https://packages.wasta-wocket.fr/systemd-unit-doctor-kit/): Inspect systemd unit files with portable diagnostics for browsers, CLIs and CI. - [crontab-timer-migration-kit](https://packages.wasta-wocket.fr/crontab-timer-migration-kit/): Generate systemd timer migration drafts from crontab text with diagnostics. - [retry-delay-plan-kit](https://packages.wasta-wocket.fr/retry-delay-plan-kit/): Build deterministic retry delay plans with diagnostics, jitter and Retry-After helpers. - [jmx-k6-migration-kit](https://packages.wasta-wocket.fr/jmx-k6-migration-kit/): Audit JMeter JMX files and generate safe k6 migration scaffolds with explicit diagnostics. - [terminal-table-kit](https://packages.wasta-wocket.fr/terminal-table-kit/): Parse fixed-width terminal table output into typed rows for scripts, dashboards and docs. ## Values - [hex-color-token-kit](https://packages.wasta-wocket.fr/hex-color-token-kit/): Extract and validate CSS hex color tokens with spans, normalized values and readable diagnostics. - [color-nearest-match-kit](https://packages.wasta-wocket.fr/color-nearest-match-kit/): Match a color against a named palette with ranked results and readable diagnostics. - [currency-code-symbol-kit](https://packages.wasta-wocket.fr/currency-code-symbol-kit/): Resolve ISO currency codes to locale-aware symbols with structured diagnostics. - [localized-price-parse-kit](https://packages.wasta-wocket.fr/localized-price-parse-kit/): Parse localized price strings into decimal values, currency hints and separator metadata. - [murmur-string-hash-kit](https://packages.wasta-wocket.fr/murmur-string-hash-kit/): Hash UTF-8 strings with browser-friendly MurmurHash3 x86_32 helpers. - [hex-grid-kit](https://packages.wasta-wocket.fr/hex-grid-kit/): Build interactive SVG hex grids with cube coordinates, hit testing and framework-agnostic helpers. - [proto-form-kit](https://packages.wasta-wocket.fr/proto-form-kit/): Turn Protocol Buffer schemas into form-friendly metadata, method hints and JSON examples. ## Key facts - Every package links to its public GitHub repository and npm release. - Package code is published under MPL-2.0. - Interactive demos run in the browser; the core documentation is present in the initial HTML.