Notes app or Google Drive scan
Our pickBuilt in, no watermark, no account.
What is the best free document scanner app?
The best free document scanner is already on your phone. On iPhone, open Notes, tap the camera and choose Scan Documents. On Android, the Google Drive app has a Scan button. Both straighten pages, clean them up and save a PDF with no watermark. Adobe Scan is a good free extra with text recognition.
Sites last checked 15 Oct 2026. How we test
Our pick
Also good
Adobe Scan
GoodFree scanner with text recognition.
Skip these
CamScanner
AvoidAn Android version once carried malware. Free scans are watermarked.