Launched this week

LHT Reader
Open 10,000 documents at once. Free, offline, no account.
2 followers
Open 10,000 documents at once. Free, offline, no account.
2 followers
LHT Reader opens thousands of files at once – PDFs, Word, Excel and PowerPoint files, pictures, emails, whole folders and web pages – in one window, and lets you read, mark up, compare, redact, sign, number, OCR and export them. On our test PC, a folder of 10,000 files was in and its first page on screen in 0.69 seconds. No account and no cloud: your documents never leave your computer. Free for Windows and macOS.







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Hi everyone, I'm Arun. I'm a practising barrister in England and Wales, and an advocate and solicitor in Malaysia. I built LHT Reader for my own work.
A big case can mean thousands of documents: pleadings, exhibits, emails, spreadsheets, scans. Every reader I tried was built for opening a handful at a time. I wanted to drop the whole case folder in and just work: click a file and it's on screen, mark it up, find a word across all of them, and drag the pages someone needs straight into an email.
What LHT Reader does:
• Opens 10,000 files at once. On our test PC, the folder of our public speed test pack (10,000 files, 896 MB) was in and its first page on screen in 0.69 seconds. The pack is on our site, so you can time it on your own computer.
• Opens 33 formats, each as a PDF (Word, Excel, PowerPoint, pictures, emails, web pages and more), and writes 8, including Word, Excel and PowerPoint.
• Compares two versions, redacts properly (and checks that no text is left), signs with a digital ID, OCRs scans, and adds page numbers and Bates numbers.
• Drags pages out of the window as a PDF: onto the desktop, into an email or into a WhatsApp chat (Windows).
• Hides one document from screen sharing in a video call, while the rest of the window is shared (Windows).
Everything happens on your own computer: no account, no cloud, no upload.
Version 1 is free for everyone, for work and at home. When a paid Version 2 comes, Version 1 stays free for personal use and for organisations of up to 10 people.
I'd love to hear what you open by the thousand, and what you'd want LHT Reader to do next.