Best lightweight browsers for Windows in 2026

Google Chrome is the official browser from Google, described as fast, secure and customizable. The current version is 157.0.8103.39, updated November 3, 2026, which is the most recent update date among the 12 entries.

The installer is 156.5 MB, so it is mid-to-heavy in this group rather than small. It is freeware, not open source. If you value a current build above a small footprint, the update date is its main argument here. No memory figures are available to back a speed claim.

Microsoft Edge is made by Microsoft Corporation. It first shipped for Windows 10 and Xbox One in 2015, reached Android and iOS in 2017, macOS in 2019 and Linux in 2020. The listed build is 156.0.4314.58, updated October 30, 2026.

At 205.5 MB it has the largest installer of the 12, which makes it a poor fit if download size is your main test for a light browser. Its license is listed as Proprietary. It makes more sense for people who already use Microsoft accounts and want the same browser across several devices.

Firefox is developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation, and is released under MPL-2.0. It renders pages with the Gecko engine, and from 2017 it began adopting technology under the code name Quantum for parallelism.

The catalog lists version 159.0, updated October 27, 2026, with a 90.2 MB installer. That is the second smallest in this group after Zen. The Windows build officially targets Windows 7 or newer, which matters for older machines.

Brave is made by Brave Software Inc and is released under MPL-2.0. Its stated aim is to block ads and trackers that slow pages down and intrude on privacy, so the blocking is part of the browser itself and does not depend on an extension.

The catalog lists version 156.1.98.63, updated October 30, 2026, with a 160.1 MB installer. That size is not small, though blocking content may reduce what a page loads. The catalog has no measurements to confirm that effect.

Opera GX is a special version of Opera from Opera Software. It keeps Opera's privacy, security and efficiency features and adds extras meant for gaming. The current version is 138.0.6044.65, updated October 29, 2026, under a freeware licence.

Because the extras are aimed at gaming, it suits players more than people who want the plainest possible browser.

Opera is a multi-platform browser from Opera Software, built on Chromium. The current version is 139.0.6053.22, updated October 29, 2026, as freeware. Opera Software says it differs from other browsers in its interface and functions.

Because it uses Chromium, it will feel familiar to Chrome and Edge users while keeping Opera's own layout and tools.

Tor Browser routes traffic through a network of relays run by volunteers around the world. According to the project, this keeps observers on your connection from learning which sites you visit, hides your physical location from those sites, and opens access to blocked ones.

The catalog lists version 16.0, updated October 29, 2026, under MPL-2.0, with a 120.4 MB installer. Routing through relays is a different aim from raw speed, and the catalog has no timing data on it.

Waterfox comes from BrowserWorks and is described by its developer as a privacy-focused browser built for speed and control. The current version is 6.7.7, updated October 27, 2026, under MPL-2.0.

Its installer is 101.2 MB, which puts it in the middle of the group, larger than Firefox at 90.2 MB but smaller than Brave and Chrome. Treat the speed claim as the developer's own statement.

Floorp is built on Firefox and was developed in Japan. Its stated goals are privacy and flexibility. The catalog lists version 12.18.1@156.0.1 from Ablaze, under the Mozilla Public License Version 2.0.

The installer is 109.2 MB. This entry has the oldest update date among the current Windows builds, September 23, 2026, so it trails the others by about a month. That may matter if you want the most recent fixes.

LibreWolf is an independent version of Firefox with privacy, security and user freedom as its main goals. Its settings and patches aim to resist tracking and fingerprinting, and the project says it removes telemetry and data collection. It also disables DRM.

The catalog lists version 159.0.1-1, updated October 28, 2026, under MPL-2.0. The 167 MB installer is the third largest in the group, so the focus here is privacy rather than download size. Disabling DRM may block some streaming sites.

Zen Browser has the smallest installer in the list at 74.9 MB. It is described as a privacy-focused, designed browser, and the catalog lists it under Mozilla with an MPL-2.0 licence.

The listed version is 1.9b, and the update date is March 8, 2025. That is much older than every other entry, which were updated in September or October 2026. If you want the smallest download, it fits, but the age of the listed build is a real concern.

Mullvad Browser was developed by Mullvad VPN together with the Tor Project. It aims to reduce tracking and browser fingerprinting, and its makers note that hiding your IP address alone does not stop data collection. They pair it with a trustworthy VPN for stronger resistance.

The catalog lists version 16.0, updated October 29, 2026, under MPL-2.0. The installer is 103.4 MB. It does not route traffic through Tor relays, so its approach differs from Tor Browser's.