Dokwise Processes PDFs Entirely In-Browser, With CSP to Prove No Data Leaves

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A developer has built Dokwise, a free browser-based toolkit offering 16 PDF and image processing tools — including merge, split, OCR, compress, and e-signature — that require no account and no server. All file processing runs locally using JavaScript libraries such as pdf-lib, tesseract.js, and native browser APIs, meaning files never leave the user's device. The site enforces a strict Content Security Policy (CSP) that blocks any network requests to unlisted hosts, preventing both first-party and third-party code from silently transmitting data. The developer acknowledged that tesseract.js originally fetched worker and language files from an external CDN, which was resolved by bundling all assets locally. The only external connections permitted are to Google Analytics for anonymous page-view tracking, which is disclosed in the site's privacy policy and visible in the CSP header.

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