Life & fun · alternatives · 2026

24 alternatives to Speedifier

Control video speed of every HTML 5 video in Safari

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Speedifier launched in 2017; newer entries below may have overtaken it.

1
Video Speed Controller ▲79
Speed up, slow down, any HTML5 video with shortcuts
2015 · chromewebstore.google.com · its alternatives →
2
Video Speed Controller▲104
Control the speed of videos on any website with hotkeys 🎬
2018 · videospeedcontroller.com · its alternatives →
3
Video Speed▲5
iOS Safari extension control 4 YouTube video playback speed
2017 · apps.apple.com · its alternatives →
4
JustLetMeWatch▲63
Safari extension to improve video playback on the web.
2019 · camdenfullmer.com · its alternatives →
5
Accelerate▲1
Customizable controls for video playback speed in Safari
2019 · apps.apple.com · its alternatives →
6
Video Speed Controller▲5
Speed up, slow down, advance and rewind HTML5 audio/video
2020 · github.com · its alternatives →
7
Slow Fast Slow▲112
Slo-Mo (and Fast-Mo) videos on your iPhone
2014 · studioneat.com · its alternatives →
8
Dynamo▲72
Ad zapper & video flow controller for Safari
2019 · apps.apple.com · its alternatives →
9
Speedtest by Ookla, for Mac▲277
Take a speedtest from your Mac's Menu Bar
2017 · speedtest.net · its alternatives →
10
Watch Net Speed▲212
Simple, Realtime Network Bandwidth Monitor for your Mac.
2019 · its alternatives →
11
Speedify: Video speed controller▲2
Speedify videos everywhere
2019 · chromewebstore.google.com · its alternatives →
12
HTML5 Speedtest by Ookla▲282
The world’s most trusted internet speedtest
2016 · beta.speedtest.net · its alternatives →
13
Youtube Playback Speed Control▲14
Chrome extension to control the speed of Youtube playback
2018 · chromewebstore.google.com · its alternatives →
14
Youtube Custom Playback▲169
Unlock up to 16x speed with native-style controls
Jan 2026 · youtube-playback.space · its alternatives →
15
Weedout – Safari extension that hides YouTube AI-labeled videos▲185
Weedout is a Safari extension that filters out videos YouTube labels as “Made with AI”.
Sep 2026 · masteranza.github.io · its alternatives →
16
Slowmographer▲221
Make slow-motion videos & GIFs with incredible filters
2016 · its alternatives →
17
Turn Off the Lights▲82
A simple browser extension for watching videos 🎥🌚
2017 · its alternatives →
18
Speedeo▲5
Watch videos faster and save time - playback rate controller
2016 · apps.apple.com · its alternatives →
19
Speedy▲97
Fast and accurate speed test in your menu bar
2021 · goodsnooze.gumroad.com · its alternatives →
20
Slowy app, Real-world connection simulator and bandwidth limiter▲104
A Few Facts About Us… Our company tries to ensure that all Mac users are able to get the best experience, and that is why we recommend our customers to use the apps and software that we recommend. We ourselves are Mac users that is why everything that we do and recommend is through experience.
2011 · slowyapp.com · its alternatives →
21
Safari 13▲192
The new, faster and more efficient Safari
2019 · apple.com · its alternatives →
22
1Blocker for Mac▲162
The best Safari content blocker for Mac
2016 · 1blocker.com · its alternatives →
23
Speedometer 3.0▲131
Benchmarking app performance on the modern web
2024 · github.com · its alternatives →
24
1Blocker X▲113
A fast and secure content blocker for iOS
2018 · apps.apple.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →