OpenSlides vs Thumbnailr

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenSlides compared with Thumbnailr
Detail	OpenSlides	Thumbnailr
What it does	A deck studio that runs in your browser with animated slides, live presenting, narration, dubbing and video export	Free YouTube thumbnail maker that runs in your browser, no sign-up or install required
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: all features except AI. AI on account credits: 1,000 credits for $5 or 5,000 for $20. Optional cloud services billed by their providers.	Free mode: £0/forever with full editor, 10 templates, Thumbnail Check, feed test, series mode (3 per batch), 1280×720 PNG & JPG export, no watermark. Pro mode: £4.99/month or £39.99/year (about £3.33/month), includes 16 premium templates, brand kit, unlimited series (up to 200 per ZIP), one-click ba
Key features	263 animated motion components including backgrounds, kinetic type, charts, maps, 3D, and interactive widgets Live presenting with presenter view showing notes, next slide and timer Narration and dubbing in multiple languages Import and export PowerPoint files and PDF Four-step workflow from brief to finished deck with or without AI Full studio functionality on phone and tablet AI integration with multiple model providers and account credits Encrypted sharing with private links that hosts cannot read	10 free templates including 5 gaming layouts Bold outlined text and face cut-outs Thumbnail Check design checklist Feed test preview in mock social feed 1280×720 PNG and JPG export with no watermark YouTube video link import Works on desktop and mobile browsers Pro: one-click background removal on device Pro: 4K export and brand kit with saved colors and fonts
What makes it different	All features except AI are completely free with no watermark and no account required Your decks stay on your device in browser storage until you choose to share them AI stays optional and works with your own keys so the company never sees your deck or bills Open source code licensed MIT or Apache-2.0 at your choice Automatic self-repair that checks and fixes AI-generated changes up to twice	No sign-up or installation required, works directly in browser All images and projects stay private on your device, never uploaded Completely free with no watermark and no time limits 13 original gaming layouts with dedicated gaming pack
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	13	0
Referring domains (Majestic)	3	0

5 details filled in for both companies.

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