AllUtil

Changelog

What we've shipped

A running record of every tool, fix and improvement on AllUtil. New tools are added regularly, each reviewed before it goes live.

  • 9 releases
  • Updated regularly
  1. v0.9August 27, 2026New

    Shipping new tools

    Two more developer utilities joined the catalog, plus polish across the site.

    • QR Code Generator — client-side PNG generation with error-correction levels and configurable size.
    • HTML Minifier — comment removal, whitespace collapse and configurable options with size comparison.
  2. v0.8August 24, 2026New

    The MCP & formatting batch

    A focused run of tools for the Model Context Protocol and everyday formatting.

    • MCP Config Generator — multi-client configs for Claude Desktop, Cursor, VS Code, Windsurf and Zed.
    • MCP Security Scanner — HTTPS, auth, CORS and tool-poisoning checks for MCP servers.
  3. v0.7August 23, 2026New

    Fundamentals batch

    The everyday developer basics, each with honest explanations and privacy-first in-browser logic.

    • Hash Generator — SHA-1/256/384/512 and HMAC via the Web Crypto API.
    • Password Generator — entropy score, crack-time estimates and configurable character pools.
    • Timestamp Converter — bidirectional, timezone-aware, auto-detecting seconds vs milliseconds.
  4. v0.6August 20, 2026New

    Developer utilities batch

    Regex, hashing prep and scheduling tools that developers reach for daily.

    • Regex Tester — pattern testing with match highlighting and capture-group output.
    • Claude Resume Timer — terminal commands for resuming stalled Claude sessions.
  5. v0.5August 18, 2026New

    Data & formatting batch

    Converters and validators for the formats developers work with most.

    • Diff Checker — LCS line diff with word-level highlighting.
    • Embedding Dimension Calculator — vector storage sizing for embedding pipelines.
    • JSON Schema Validator — validate schemas for OpenAI function calling.
  6. v0.4August 15, 2026New

    Digital tooling batch

    Formatting and networking utilities, all running entirely in the browser.

    • URL Encoder / Decoder — strict RFC 3986 percent-encoding.
    • CSS Gradient Generator — linear, radial and conic gradients.
  7. v0.3August 12, 2026New

    Coding utilities batch

    Helpers for tokens, contexts, cron and API integration.

    • JWT Decoder — decode and inspect JSON Web Tokens.
    • Curl Command Generator — build curl requests for testing APIs.
    • OpenAI Token Counter — estimate token usage across OpenAI models.
  8. v0.2August 9, 2026New

    Validation & encoding batch

    Core validators and encoders for protocol and schema work.

    • MCP Schema Validator — validate MCP tool definitions against the spec.
    • Base64 Encoder / Decoder — encode and decode Base64 strings.
    • MCP Server Tester — probe and verify MCP server endpoints.
  9. v0.1August 6, 2026Launch

    Foundation

    The first tools and the site itself.

    • JSON Formatter — format, validate and minify JSON.
    • UUID Generator — generate UUID v4 identifiers.
    • LLM Token Counter — approximate tokens for large language models.
    • Context Window Calculator — fit prompts into a model's context window.
    • Cron Expression Generator — build and explain cron schedules.
    • YAML to JSON Converter — convert between YAML and JSON.

Note: release dates reflect when each tool was added to the catalog. You can explore every tool from the homepage.