Both extensions convert on-screen text to speech, which helps with proofreading, multitasking or accessibility. Read Aloud keeps things straightforward and free using system voices, while Speechify focuses on more natural voice quality and a broader feature set, with some of it reserved for paying users.
Voice quality and naturalness
Read Aloud uses the text-to-speech voices already built into your browser or operating system, which are functional but can sound robotic. Speechify uses its own voice engine designed to sound more natural and human-like, which is one of its main selling points over free alternatives.
Reading speed and playback controls
Both extensions let you adjust reading speed and pause or skip through the text. Read Aloud keeps its controls simple and accessible from the toolbar. Speechify adds more granular speed options and the ability to switch between multiple voice styles mid-session on its paid tiers.
Free usage and paid features
Read Aloud is free to use for reading web pages aloud with no separate paid tier for that core feature. Speechify offers a free tier, but its more natural premium voices, faster processing and use across more file types typically require a paid subscription.