a small crate of tools
Everyday utilities,
no upload required.
A small crate of everyday utilities for developers and Minecraft players — formatters, converters, and generators that run entirely on plain JavaScript in your browser. No upload required, no sign-up, no limits.
100% client-side — verify by checking your network tab
Browse all tools
JSON
JSON to TypeScript Converter
Paste JSON and get a TypeScript interface with nested types, arrays, and optional fields inferred automatically. Runs entirely in your browser.
JSON
JSON Formatter & Validator
Format, validate, and minify JSON online. Get precise error locations for invalid JSON. No upload, fully client-side.
Encoding
Base64 Encode / Decode
Convert text to Base64 or decode Base64 back to plain text, instantly and entirely in your browser.
Encoding
URL Encode / Decode
Percent-encode or decode URLs and query string parameters instantly in your browser.
Encoding
JWT Decoder
Decode a JSON Web Token to inspect its header and payload claims. Runs entirely client-side — your token never leaves your browser.
Generators
UUID Generator
Generate random v4 UUIDs in bulk, one per line, using your browser's native crypto API.
Generators
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable UTC dates and back, instantly in your browser.
Dev Utilities
Regex Tester
Test a regular expression against sample text with live match highlighting and flag toggles (g, i, m, s).
Minecraft
XP Level Calculator
Convert between Minecraft experience level and total XP points using the game's actual level-cost formulas.
Minecraft
Nether Coordinate Converter
Convert Overworld coordinates to Nether coordinates (divide by 8) and back (multiply by 8) for building efficient portal networks.
Minecraft
Chat / MOTD Color Code Generator
Build formatted Minecraft chat messages and server MOTDs with a live-colored preview, using all 16 color codes and 5 formatting codes.
Minecraft
Circle Block Generator
Generate a block-accurate circle outline or filled disc for any radius, for building round towers, domes, and walls.
Dev Utilities
CSV to JSON Converter
Convert CSV to JSON or JSON to CSV, correctly handling quoted fields and commas inside values. Fully client-side.
Encoding
Hash Generator (SHA)
Generate a SHA-1, SHA-256, SHA-384, or SHA-512 hash of any text using your browser's built-in Web Crypto API.
Word & Text
Color Converter (Hex/RGB/HSL)
Convert a color between hex, RGB, and HSL formats with a live preview swatch.
Generators
Password Generator
Generate cryptographically random passwords with adjustable length and character sets, using your browser's Web Crypto API.
Word & Text
Markdown Previewer
Write Markdown and see a live-rendered preview: headings, bold/italic, links, lists, blockquotes, and code blocks.
Word & Text
Lorem Ipsum Generator
Generate classic Lorem Ipsum placeholder text, any number of paragraphs, for mockups and layouts.
Word & Text
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE all at once.
Minecraft
Redstone Timer Calculator
Convert between Minecraft game ticks and real-world seconds, with a quick-reference table for repeater delay settings.
Minecraft
Furnace Fuel & Smelt Time Calculator
Calculate exactly how much fuel you need and how long it takes to smelt any number of items, across any number of furnaces.
Minecraft
Anvil Enchantment Cost Calculator
Calculate the XP level cost of an anvil combine before you do it, including the prior-work penalty, so you don't hit the 'too expensive' cap.
Minecraft
Villager Breeding Food Calculator
Calculate exactly how much bread, carrots, potatoes, or beetroot you need to breed a given number of villager pairs.
Minecraft
Render Distance / Chunk Calculator
See exactly how many chunks are loaded at any render distance setting, for server performance planning.
Games
Game Sensitivity Converter
Convert your mouse sensitivity between Valorant, CS2, Apex Legends, Overwatch 2, Fortnite, and Call of Duty so your aim feels identical in every game.
Games
Game Currency to USD Converter
Convert Robux, V-Bucks, Minecoins, and Apex Coins to an estimated USD value based on typical bundle pricing.
Dev Utilities
CSV to Markdown Table
Convert CSV data into a formatted Markdown table, ready to paste into a README or GitHub issue.
Dev Utilities
CSV Deduplicate & Sort
Remove duplicate rows and sort CSV data by any column, entirely in your browser.
Word & Text
Word & Character Counter
Count words, characters, sentences, and paragraphs live as you type, with an estimated reading time.
Word & Text
Text Diff Checker
Compare two blocks of text and see exactly which lines were added, removed, or unchanged.
Dev Utilities
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly, all four shown at once.
Dev Utilities
Slug Generator
Convert any text into a clean, URL-safe slug — lowercase, hyphenated, accents stripped.
Encoding
HTML Entity Encoder/Decoder
Encode special characters into HTML entities, or decode HTML entities back to plain text.
Dev Utilities
Cron Expression Explainer
Paste a 5-field cron expression and get a plain-English explanation of when it runs.
Minecraft
Beacon Pyramid Calculator
Calculate exactly how many blocks you need to build a beacon pyramid for any level, 1 through 4.
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