Stateless Tools

파일을 업로드하지 않는 도구만 모았습니다

브라우저 내부 처리

PDF 병합, OCR, 이미지 압축까지 전부 브라우저 안에서 끝납니다. 사내 문서나 개인정보가 든 파일을 외부 서버에 올리지 않아도 됩니다.

전체 도구

가이드 보기

AI Command Cheatsheets

Current Claude Code and Codex command flows with official docs.

/ai-tools

Codex Commands

Codex CLI, slash commands, AGENTS.md, Skills, MCP, and Automations.

/codex-cheatsheet

Claude Code Commands

Commands, skills, MCP, hooks, run/verify, and background agents.

/claude-code-cheatsheet

UUID Converter

Random UUIDs plus round-trip hex(binary16) conversion.

/uuid

Base64 Encoder/Decoder

Encode or decode Base64 text, files, and URL-safe values.

/base64

JSON Formatter

Format, validate, minify, and inspect JSON in tree view.

/json

JWT Decoder

Decode JWTs, inspect claims, and check expiry quickly.

/jwt

Cron Parser

Parse cron expressions and preview next run times.

/cron

URL Encoder/Decoder

Encode, decode, and inspect query string parameters.

/url

SHA Hash Calculator

Compute SHA hashes and copy HEX or Base64 output.

/hash

Unix Timestamp Converter

Convert epoch seconds or milliseconds to dates and back.

/timestamp

Age Calculator

Exact age, date difference and D-day countdown.

/date-calc

Password Generator

Generate secure passwords with flexible length and character options.

/password

Regex Tester

Test patterns and flags, then inspect highlighted matches.

/regex

QR Code Generator/Scanner

Generate text/Wi-Fi QR and scan QR from image uploads.

/qr

Text Diff

Compare original/edited lines with unified diff output.

/diff

Color Converter/Contrast Checker

Convert HEX, RGB, HSL and check contrast ratios.

/color

Markdown Preview

Render Markdown and extract HTML.

/markdown

Unit Converter

Quick conversion for length/weight/temperature.

/convert

File Hash Calculator

Compute SHA hashes in your browser.

/file-hash

Image Base64 Converter

Convert image files to/from data URLs.

/image-base64

Case Converter

Convert camelCase, snake_case, kebab-case, and PascalCase.

/case-convert

JSON YAML Converter

Convert JSON and YAML, plus clean up CSV data.

/json-yaml

IP/User-Agent Info

Quick check for IP, UA, locale and timezone.

/ip-ua

PDF Merge/Split

Merge, split, extract pages, watermark, and inspect PDFs.

/pdf-toolkit

Image Optimizer

Compress, resize, and convert WEBP/JPEG/PNG files.

/image-optimize

OCR Text Extractor

Extract Korean and English text from images.

/ocr

SEO Meta Tag Checker

Audit title, description, OG, and canonical tags.

/seo-check

UTM Generator

Build campaign URLs and test short-code style parameters.

/utm-builder

Text Cleaner

Remove duplicates, trim whitespace, sort lines, and slugify.

/text-cleaner

Character Counter

Characters with and without spaces, words, sentences, paragraphs.

/text-stats

CIDR Calculator

Calculate subnet, broadcast, and host ranges from IPv4 CIDR blocks.

/ip-cidr

API Request Tester

Send HTTP requests, inspect responses, and export them as cURL.

/api-tester

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