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High-Throughput Web Utilities

Developer Diagnostics & Inspection Suite

Zero-telemetry, 100% client-side developer tools. Decode tokens, analyze text byte weights, estimate LLM context tokens, inspect regular expressions, and visualize complex JSON structures with interactive node graphs.

JWT & ENCODING

Multi-Decoder & Inspector

JWT · Base64 · Unix Epoch

Inspect & decode JWT tokens with live expiration claims badges, convert Base64 and URL-encoded strings with UTF-8 safety, and parse Unix timestamps.

  • JWT Header & Payload inspection with Base64URL safety
  • Smart Claims badge (VALID vs EXPIRED) with live time drift
  • Bidirectional Base64 & URL percent-encoding
  • Unix timestamp auto-detection (seconds vs milliseconds)
Launch Tool
METRICS & TRANSFORMS

Text & Token Analyzer

Word Count · LLM Tokens · Transforms

Real-time text forensics, character and sentence counters, UTF-8 byte calculations, estimated LLM token usage, and 8 one-click case transforms.

  • Dev telemetry: UTF-8 bytes & estimated LLM tokens
  • Reading & speaking time estimations
  • Instant casing transforms (camelCase, snake_case, etc.)
  • Top-10 keyword density analyzer with stop-word filter
Launch Tool
TREE & GRAPH 2D

JSON Beautifier & Graph

Rainbow Tree · Crack-Style Node Graph

Syntax validator and beautifier featuring a 5-color depth-mapped collapsible rainbow tree and an interactive pan-and-zoom SVG node graph.

  • Format (2 or 4 spaces) & minify with strict syntax alerts
  • 5-accent collapsible rainbow tree with dot-path copying
  • Interactive pan-and-zoom deterministic SVG node graph
  • Instant sample dataset loading for schema debugging
Launch Tool
REGULAR EXPRESSION

Regex Tester & Inspector

Pattern Matcher · Capture Groups · Presets

Real-time regular expression sandbox with interactive flag toggles, zero-length loop protection, rainbow matched segments, and capture group inspection.

  • Interactive flag pills: g, i, m, s, u with instant regex evaluation
  • Safe loop algorithm preventing browser freeze on empty matches
  • Numbered and named capture group breakdown with index ranges
  • One-click presets: Email, URL, IPv4, UUID, Hex, JWT, ISO Date
Launch Tool
LCS DIFF ENGINE

Code & Text Diff Checker

LCS Matrix · Side-by-Side & Unified

Pure client-side Longest Common Subsequence diff engine comparing text and code line-by-line with inline stats, synchronized scrolling, and unified patch export.

  • Deterministic 2D Longest Common Subsequence (LCS) matrix
  • Side-by-side split and unified Git-diff view modes
  • Ignore whitespace and ignore case comparison toggles
  • One-click unified patch format (.patch) copy to clipboard
Launch Tool
Zero-Telemetry & Privacy Guarantee
100% Client-Side MemoryAll tokens, payloads, and strings are decoded locally in your browser memory. Zero network payloads or backend logging.
Sub-Millisecond EngineInstant synchronous computations with native Web APIs (`TextEncoder`, `Blob`, `JSON.parse`) without lag or cloud latency.
Mobile ResponsiveTouch-optimized split screens, collapsible branches, and pan-and-zoom graphics ready on desktop and smartphone viewports.