Writing
Character & byte counter
Count characters, lines, UTF-8 bytes, and EUC-KR-style bytes with configurable cover letter, Korean SMS/LMS, and KakaoTalk draft goals.
Open toolKorean writing toolkit first
modu.tools
Count cover letter and SMS drafts, romanize Korean text, then jump into a developer data workbench — all browser-local, with clear limits.
- 2 writing tools
- Developer workbench
- No login
Korean writing toolkit
Start with the writing tools
Character/byte goals for essays and messages, plus Revised Romanization. Presets are configurable starting points — confirm each portal's own rule.
Writing
Korean romanizer
Convert Hangul to Revised Romanization of Korean, including common sound changes.
Open toolDeveloper data workbench
Format JSON, convert CSV and YAML, encode URLs and Base64, and hash text in one place: open the workbench. Dedicated tool pages remain available for focused tasks.
Other tools
Text, data, URL, and image utilities
Each page still explains exact behavior, tradeoffs, and the local-processing boundary.
Data
JSON formatter
Format, minify, validate, and alphabetically sort JSON directly in the browser.
Open toolData
CSV to JSON converter
Convert CSV rows into JSON objects or arrays with browser-local processing.
Open toolData
YAML/JSON converter
Convert pasted JSON to YAML or YAML to pretty JSON directly in the browser.
Open toolData
Hash generator
Generate SHA-1, SHA-256, SHA-384, or SHA-512 hashes for pasted text locally.
Open toolData
Markdown table formatter
Align Markdown table columns and rebuild separator rows for readable plain-text tables.
Open toolURL
URL encode/decode
Percent-encode text for URLs or decode encoded values back to readable text, in component-value or full-URL mode.
Open toolImage
Image crop, resize & format converter
Crop exact pixels, resize dimensions, and re-encode PNG, JPEG, or WebP images without uploading them.
Open tool