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Developer

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  • Developer
    JSON Formatter Paste any JSON and instantly format, validate, and syntax-highlight it — free online JSON formatter with tree view, graph view, and minifier. No install needed.

Text

2
  • Text
    Case Converter Convert text to UPPER CASE, lower case, camelCase, PascalCase, snake_case, kebab-case and more — instantly in your browser.
  • Text
    Word Counter Count words, characters, paragraphs and reading time instantly. Detailed text analysis with keyword density.

Finance

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  • Finance
    Compound Interest Calculator Calculate compound interest with year-by-year breakdown — enter principal, rate, period, and monthly contributions. Free online compound interest calculator.

Security & Encoding

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  • Security & Encoding
    Base64 Decoder Decode Base64 strings back to plain text instantly in your browser. Validates input and shows decoded payload size.
  • Security & Encoding
    Base64 Encoder Encode any text to Base64 instantly in your browser. Supports UTF-8, shows character count and payload size.
  • Security & Encoding
    JWT Decoder Decode and inspect JSON Web Tokens instantly — view header, payload, verify HMAC signatures, and generate JWT code in PHP, JavaScript, Python, and Java.

Image

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  • Image
    Base64 to Image Paste a Base64 string or data URL and instantly preview the decoded image — free online converter supporting PNG, JPEG, WebP, GIF, SVG. No upload, runs locally.
  • Image
    Image to Base64 Upload any image and convert it to a Base64 data URL ready for HTML, CSS, or JSON — free online converter supporting PNG, JPEG, SVG, WebP. No server upload.
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Developer Tools

  • JSON Formatter
  • Base64 Encoder
  • JWT Decoder
  • Case Converter
  • Word Counter

More Tools

  • Compound Interest
  • Image to Base64
  • Base64 to Image

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