Guides
Practical tutorials to get more from our free online tools.
How to Merge PDF Files Without Uploading Combine multiple PDFs in your browser — files never leave your device. Compress a PDF for Email Attachment Limits Shrink image-heavy PDFs when your message says "attachment too large". Compress JPG and PNG Images for Web Upload Reduce file size before submitting forms, portfolios, or applications. Convert HEIC to JPG from iPhone Photos Make iPhone photos compatible with forms that only accept JPG or PNG. Generate a QR Code Locally — No Account Needed Turn URLs, Wi-Fi credentials, or text into a downloadable QR image. Format and Validate JSON in the Browser Beautify, minify, or check JSON before pasting into configs or APIs. Merge Multiple Word DOCX Files into One Combine chapters or sections without copy-pasting between files. Create Strong Random Passwords Locally Generate passwords without sending them to any server.