Reliable Highlighter — Web Pages and Local PDFs, Marks Survive Reloads

Highlight text on any web page or PDF. Marks survive reloads and edits. 100% on-device.

Highlight anything you read, on a web page or inside a PDF, and find it again later. Reliable Highlighter anchors each mark to the text itself, so your highlights survive a reload and stay where you put them instead of drifting or vanishing. What it does - Highlight any selection on the live web, from the toolbar button, Alt+H, or the right-click menu - Re-anchors marks after a page changes or reloads, so they land back on the right words - Three highlight colors, with a note attached to any mark - A local library of everything you have marked, grouped by page - Opens local PDFs in a built-in viewer so you can highlight those too Free and Pro Free covers the whole reading workflow and stays that way: highlighting on the web and in PDFs, re-anchoring, notes, three colors, and the local library, up to 50 marks per page. Pro is a one-time purchase and adds unlimited colors and marks, automatic restore on every page load, sync across your devices, one-click export to Markdown, JSON or CSV, tags with search across your whole library, and highlight styles including pen, marker and underline. Private by design Your highlights are stored locally on your device. Nothing is uploaded, there is no account to create, and automatic restore is opt-in because it is the only feature that needs wider page access. See your options Every plan is backed by a 14-day money-back guarantee. See plans at https://zovo.one/pricing