Quick browser tools — no signup, nothing uploaded. When you need batch, offline, or unlimited power, the matching Kaizen desktop app takes over.
Measure your clicks per second in 1–100 seconds. Spacebar mode and the Kohi 10-second test included.
Combine JPG & PNG images into a single PDF, in order, right in your browser. Private — nothing uploaded.
Join multiple PDFs into one. Unlimited, offline, and private with the Kaizen OCR & PDF desktop app.
Shrink PDF file size while keeping quality. Heavy or sensitive files? Do it offline in Kaizen OCR & PDF.
Extract text from an image in your browser. For 4-engine accuracy, 100+ languages & batch jobs, use Kaizen OCR.
Pull audio from video. For dubbing, transcription and YouTube tools, Kaizen Speech Studio does it all.
More tools ship every week. Want one prioritised? Tell us.