Tools

Simple tools for everyday use

Daily & Finance

Calculate Taiwan stock transaction costs

Estimate interest income from lending your stocks

Calculate monthly payments and effective APR

Specialized for house loans, supports grace periods and multi-tier rates.

Format and validate JSON data

Encode and decode Base64 strings

Encode and decode URL strings

Parse and edit URL parameters

Generate cryptographic hash values

Generate random UUIDs (v4)

Generate secure random passwords

Convert between Unix timestamps and dates

Test and debug regular expressions

Decode and debug JSON Web Tokens

Preview and edit Markdown in real-time

Count words, characters, sentences and paragraphs

Convert text between different cases

Generate QR codes from text or URLs

Generate placeholder text for your designs

Compare two texts and find differences

Pick and convert colors between formats

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