Free online tools

Fourline Tools

Text tools and PDF tools in one place — summarize, rewrite, word count, merge and compress PDF. No signup.

Generate a name for your business, brand, or project

AI-powered name generator — business, brand, domain & Instagram. Free to try.

Get a clear, short summary of any text or article in seconds.

Paraphrase text in different words while keeping the same meaning.

Improve clarity, fix grammar, and tighten your writing.

Switch between formal, casual, and friendly tone in one click.

Generate catchy headline ideas from your body text.

Count words, characters, sentences & readability. No signup.

Combine multiple PDF files into one. Reorder and download.

Extract each page into a separate PDF. Download all as ZIP.

Reduce PDF file size. Choose quality or enter custom percent.

Convert multiple images into one PDF. JPG, PNG, WebP.

Remove password and restrictions from locked PDFs.

Add password protection to your PDF.