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Add or remove GST from an amount and see the tax component instantly.

Estimate monthly mortgage payments, total repayment, and interest cost.

Calculate age in years, months, and days from a date of birth.

Estimate daily calories from body details and activity level.

Estimate crypto profit or loss from buy and sell prices.

Estimate take-home pay after simple tax deductions.

Count words, characters, sentences, and paragraphs in any text.

Convert text between sentence, title, upper, lower, camelCase, PascalCase, snake_case, kebab-case, and more.

Remove repeated lines, keeping the first or last occurrence, with an optional case-insensitive match.

Sort lines alphabetically, in reverse, or numerically, or shuffle them, with case-sensitive and remove-duplicate options.

Preview Markdown text in a clean formatted view.

Generate strong passwords with flexible length and character options.

Open TXT, Markdown, CSV, log, JSON, XML, and other text files for reading, copying, and downloading.

Open an EPUB ebook, browse chapters, and read it with its original formatting in Reader view or as extracted plain text.

Convert EPUB ebooks to plain text, extract readable chapters, and download the result as a TXT file.

Convert plain text into a multi-chapter EPUB ebook with title, author, language, per-chapter titles, an optional cover image, and a table of contents.

Format, validate, and compact JSON for quick review and cleanup.

Encode text to Base64 or decode Base64 back to readable text.