ThatToolSite is a free toolbox of 100+ tools that run entirely in your browser. Merge and compress PDFs, shrink a photo to an exact KB size for a form, turn MP4 into MP3, total a time card with lunch breaks, make QR codes and barcodes, format JSON and more. What's different: your files are never uploaded, so it's safe for private documents. No account, no watermark, no daily limit, and it works on phones too.