DocTools Pro

DocTools Pro is a free all-in-one workspace for document and image tasks such as combining PDF pages, splitting documents, shrinking files, converting between formats, cleaning up photos, and password-protecting files. The page states that all processing happens locally in the browser, files are never sent to a server, no account or installation is required, and most tools keep working offline after the page loads. It lists support for 20 file formats across documents, images, and spreadsheets, and states there is no file size limit and no tracking or analytics.

Key features

• Document Studio: merge, split, rotate, reorder, watermark, compress, protect and OCR PDF and Word documents
• Image Engine: resize, crop, compress, remove backgrounds and encrypt images including HEIC, JPG, PNG and WebP
• Universal Converter: cross-convert 20+ file types including documents, images and spreadsheets
• Encrypt & Lock: password-protect and decrypt documents, images, audio, video and archives in the browser
• Batch processing: mix file types in a single batch and apply one output setting to all files or configure each file individually
• Offline processing once the page has loaded
• No account, no sign-up, and no tracking or analytics
• Supports modern browsers such as Chrome, Firefox, Edge and Safari
• Most tools work on phones and tablets

Best suited for

• Merging or splitting PDF and Word documents
• Shrinking files to fit email attachments
• Converting between document, image and spreadsheet formats
• Resizing, cropping or compressing photos
• Password-protecting private files
• Users who want to avoid uploading files to cloud converters

Pricing

Free. The page states every tool is free to use with no account or subscription required.