Looking for something like VsyncTester? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 2 are open source.
VsyncTester checks browser vertical synchronization, display refresh behavior, and input lag.
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Google Hit Hider | — | Not stated | iOS, Web |
| 2 | Smart Upscale | — | Not stated | Browser extension, Web, Windows |
| 3 | Broken Link Checker | — | Not stated | Web |
| 4 | Link Gopher | — | Not stated | Web |
| 5 | Floccus | — | Yes | Android, iOS |
| 6 | Mullvad Browser Extension | Free | Not stated | Browser extension |
| 7 | Re-Start | — | Yes | — |
| 8 | Clippings | — | Not stated | Web, Windows |
| 9 | Session Buddy | — | Not stated | Web, Windows |
| 10 | Startpage Emporium | — | Not stated | Web, Windows |
Google Hit Hider by Domain is a search-filtering userscript listed on Greasy Fork; the supplied page does not detail its current behavior.
SmartUpscale applies integer scaling to webpage images in Firefox and Chrome to reduce blur on high-density displays.
Broken Link Checker scans links on the active webpage and checks whether they are broken or redirected.
Link Gopher extracts links and domains from webpages, removes duplicates, and displays the results for copying.
Floccus syncs bookmarks across browsers and devices; the project describes this as private bookmark synchronization.
Use the Mullvad Browser Extension beta for proxy support and IP or DNS leak checks in Firefox.
Re-Start provides a terminal-style browser start page with a task list, quick links, weather summary, and customizable display options.
Clippings saves frequently entered text for later pasting, and the site also lists separate browser tools for hiding windows and reading lists.
Session Buddy helps manage browser tabs and bookmarks, with options to save open tabs and restore saved browsing sessions later.
Browse Startpage Emporium to discover browser start pages, with examples and links to their creators.
Configuration files and documentation from Just the Browser remove AI features, telemetry reporting, sponsored content, and product integrations from desktop browsers.
Add subtitles to online videos with Substital, a browser extension designed for that purpose.
Linksort helps users save and organize links, with a browser extension for one-click bookmarking.
Block pop-ups, overlays, cookie notices, and ad-block warnings with the open-source PopUpOFF browser extension.
External Application Button adds a browser toolbar button and customizable context-menu items for launching external applications.
Vimium adds Vim-style keyboard shortcuts for navigating and controlling the web in a browser.
AutoPagerize automatically loads successive pages on supported websites through a browser extension.
Darken websites or dim video backgrounds with Turn Off the Lights, an open-source browser extension.
Build a custom new-tab page with Anori, a browser extension offering folders, color schemes, and widgets such as tasks, notes, and weather.
Customize the new-tab page with Mue, an open-source browser extension offering backgrounds, quotes, and widgets.
Copyfish is OCR software for extracting, copying, and translating text from images, video, and PDF files.
Link Hints lets users activate links, buttons, and other page elements with keyboard hints, including filtering hints by text.
OctoLinker turns module-loading statements in GitHub code into links to the referenced modules.
With Zulu, teams can curate and share visual bookmarks and other links across projects and plans.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative
