Browser tools

Finding, using, and combining the free browser tools: files, images, text, developer, calculators.

4 guides

  1. How to use AltFTool's free browser toolsOpen a tool from /tools/all, add your file or paste your text, adjust the settings, then copy or download the result. Most AltFTool file, text and calculator tools run inside your browser tab, so nothing is uploaded; tools that need live data say so on the page.5 min read
  2. How to compress images online without losing qualityOpen the AltFTool Image Compressor, add one or more JPG, PNG or WebP images, lower the quality slider until the before/after preview still looks right, optionally resize, then download each file or a ZIP. Compression runs in your browser, so images are not uploaded.5 min read
  3. PDF tools guide: merge, split, compress and convert PDFsAltFTool's PDF tools let you merge, split, reorder, compress and convert PDFs for free in your browser. Use PDF Merger to combine files, PDF Split to break one apart, PDF Compressor to shrink it, and PDF to JPG or PDF to Word to convert it; none of these upload your document.6 min read
  4. Developer tools guide: JSON, Base64, regex, JWT and moreAltFTool's Developer category has free in-browser utilities for everyday coding jobs: JSON Formatter, JWT Decoder, Regex Tester, Base64 and URL encoders, UUID Generator, Cron Expression Generator, SQL Formatter and Diff Checker. Most process input locally, so tokens and payloads are not uploaded.5 min read

Popular tools in this area

Other topics