Every other preview tool shows you a picture. Paste your email HTML into Frame and get all three: how it actually renders across Gmail, Outlook & Apple Mail, a plain-English list of every line that'll break per client — and the one thing no render tool answers, whether it'll even reach the inbox. Built by the deliverability people.
Honest fidelity — every preview is labeled by how it was produced. No fake screenshots. No signup to try.Drop in your HTML (or load a sample). Frame renders it across client engines, flags what breaks where, and scores deliverability — instantly, with nothing uploaded.
You currently need two tools and still don't get a straight answer. Frame is the bridge.
Indicative launch pricing — locking it as part of the early-access round. Email previews metered per (email × client); the linter and deliverability score don't count against your meter.
No — and we'll never pretend it is. Litmus and Email on Acid run real-client screenshot farms across 90+ clients. Frame renders the major clients through their real engines (WebKit for Apple/iOS, Chromium for Gmail/Outlook.com after their CSS rules) and rule-simulates Outlook desktop. Every preview is labeled with exactly how it was made. That catches the ~80–85% of breakage that actually matters, in seconds — and we tell you honestly where the line is.
It's the whole point. No render-QA tool tells you whether your email will land in the inbox. Frame does, because it's built by Folderly — a deliverability company. The demo above shows a content-based teaser; the full score adds your domain's authentication, blocklist status, and real inbox-placement signals.
No. The preview above runs entirely in your browser — nothing is uploaded. In the product, HTML is processed ephemerally for the render and discarded; we never retain it without explicit opt-in and we never train AI on your content.
It's in early access now. Pricing shown is indicative and being locked with the first cohort — join the list and you'll help set it (and get early-bird terms). Active Folderly customers get Frame included.
Yes — your assets are just HTML, so there's nothing proprietary to export. Paste your last campaign and you're previewing in seconds. Tell us what you relied on and we'll make sure it's covered.
Join the early list. You'll get first access, early-bird pricing, and a say in what we build — starting with the clients and ESPs you care about most.
By Folderly · render preview + deliverability · nothing uploaded · vladislav@belkins.io