Development
Surgically repair malformed CSV rows one at a time: unescaped (stray) quotes, mixed delimiters (tab/semicolon/comma in the same file), BOM-prefixed headers, CRLF/CR line endings and trailing empty lines. The surgeon parses tolerantly, shows a row-level red/green diff of every change it made (before → after, with the repair reason tagged), lists the rows it accepted unchanged, and emits the cleaned CSV. Optional AI repair can review suspicious rows after the deterministic pass. It complements the CSV Validator (which only reports problems) by actually fixing the damaged rows.
csv-malformed-row-surgeonDevelopment
Format and beautify minified or messy CSS code into readable, well-indented stylesheets
css-beautifierDevelopment
Map messy CSV headers onto a clean target schema. Paste a CSV whose first row holds inconsistent column names (Customer ID, user_id, customerId, CUST_ID…) plus your target schema (one column per line) and an optional "alias=target" dictionary. Each source header is resolved through four layered passes — exact, dictionary, normalized (strips case/accents/separators/camelCase), then fuzzy edit-distance — and shown in a mapping table with method and confidence, plus target coverage and an optional normalized CSV export.
csv-header-alias-resolverDevelopment
Plan and visualise an API latency budget. Enter a P99 target (e.g. ≤ 300ms) and per-stage allocations (DNS, TCP, TLS, TTFB, Processing, Network) to see a live waterfall, budget utilisation, and over-budget warnings. Optionally paste an OpenTelemetry or Datadog trace to reverse-engineer a measured allocation.
api-latency-budget-plannerDevelopment
Parse a 5-part / 6-part / Quartz cron expression into a plain-language schedule description, show the field-by-field breakdown, and list the next N execution times in any IANA timezone — with an AI-generated natural-language explanation in your language
cron-expression-explainerDevelopment
Browse the complete ASCII character table (0–127) with decimal, hex, octal, binary, HTML entity, and control character names; filter by code or name
ascii-tableDevelopment
Calculate CSS selector specificity scores, compare multiple selectors, and get suggestions for avoiding cascade conflicts
css-selector-specificity-calculatorDevelopment
Compare two API response payloads, highlight field-level diffs, and classify likely functional changes versus harmless runtime drift
api-response-diff-semantic-analyzerDevelopment
Generate pure CSS masonry-style layouts with responsive breakpoints, configurable gaps, and optional full-width skip selectors
css-masonry-layout-generatorDevelopment
Mutate OpenAPI request fields into semantically risky variants and optionally send them to a real backend to check defensive validation coverage
api-contract-mutation-testerDevelopment
Validate a real API response JSON against the response schema declared in an OpenAPI 3.x specification
api-response-contract-validatorDevelopment
Compare two OpenAPI 3.x schemas, identify breaking changes, grade client impact, and suggest migration or compatibility strategies
api-breaking-changes-detector-migration-planner