Free report · No signup to scan · Your email never uploads

Free Litmus Alternative — HTML email pre-flight QA

Litmus ($99/mo) and Email on Acid ($75/mo) render your email in real inbox clients and send back true screenshots. Our free QA EDM checker does a different job: it reads your HTML in your browser and runs ~17 pre-flight checks — Gmail clipping, Outlook-hostile CSS, un-inlined styles, links, alt text, preheader, spam signals — next to a desktop and mobile preview. Most rendering bugs start as code issues; this catches them before you pay anyone.

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Plainly: if you need true client-by-client rendering screenshots, Litmus is still the right tool. Prices verified June 2026.
At a glance

Litmus vs Email on Acid vs QA EDM

LitmusEmail on AcidDigiLakshya QA EDM
Entry price$99/mo (verified June 2026)$75/mo (verified June 2026)$0 — five advanced findings unlock with Pro at $25/mo · $199/yr
Core jobTrue rendering screenshots in 100+ real clients & devices, plus spam testing and analyticsRendering previews across real clients & devices, plus deliverability checks~17 code-level pre-flight checks with plain-English fixes, plus a simulated desktop & mobile preview — not real-client screenshots
Where your email goesSent to Litmus's cloud for renderingSent to their cloud for renderingParsed in your browser — the HTML never leaves your machine
Signup requiredAccount requiredAccount requiredNo — paste and scan

Prices verified June 2026 from each vendor's pricing page (Litmus, Email on Acid) — entry-tier monthly prices. Our $0 is the everyday free tier; Pro pricing is on the Studio-Tools pricing page.

What QA EDM does

~17 checks that catch the usual suspects

Every finding comes with a plain-English "how to fix". Five advanced findings — Outlook/Word-engine rendering, spam-word scoring, un-inlined CSS, dark-mode hints and the hidden preheader — are Pro; everything else is free.

Deliverability

Gmail's 102 KB clipping threshold, the unsubscribe link, the hidden preheader and spam-trigger words — the checks that decide whether your email even gets read.

Rendering

Email width, responsiveness, web fonts, and CSS that the Outlook/Word engine or dark mode won't honour — flagged from the code before any client mangles it.

Images & links

Missing alt text, non-https or relative image URLs, missing image dimensions, and empty or "#" links that go nowhere.

Structure & preview

Doctype, charset and viewport meta — plus a live desktop and narrow-mobile preview side by side, so you can eyeball reflow, font sizing and tap targets.

The honest part

Where Litmus & Email on Acid are still the better choice

Real client-by-client screenshots. Litmus and Email on Acid render your email inside actual inbox clients — Outlook on Windows, Gmail apps, Apple Mail and many more — and return true screenshots. Our checker never does this. It predicts problems from your code; it cannot show you pixel-proof of every client.
Real spam & inbox-placement testing. They test sends against actual spam filters and seed inboxes. We check for spam-trigger words and structural signals in the code — useful, but not the same as watching a real filter's verdict.
Analytics and ESP workflow. Litmus in particular adds email analytics, ESP syncing and team review workflows. Ours is a single-purpose pre-flight checker, not an email platform.
Edge-case client coverage. If your audience skews toward unusual clients or you're shipping high-risk interactive email, paid render farms earn their fee. Our ~17 checks target the common, predictable failures.

The workflow we'd honestly recommend: pre-flight every email here for free, fix the code issues, and buy real-client renders only for the sends that justify $75–$99 a month.

How it works

Paste, scan, send clean

1

Paste or upload

Drop your HTML email into QA EDM as raw markup, a .html file or a .zip. Nothing uploads to a server — it's parsed locally in your browser, so unsent and NDA work is safe.

2

Read the report

~17 checks grouped into Deliverability, Rendering, Images, Links and Structure, each with a plain-English "how to fix". The report is free; five advanced findings are Pro.

3

Preview & re-scan

Eyeball the desktop and mobile preview side by side, fix what's flagged, re-scan, and send with fewer surprises — before deciding whether a paid render pass is even needed.

FAQ

Quick answers.

Is the email QA tool really free?
Yes. Paste your HTML or drop a .html/.zip and the report runs in your browser at no cost, with no signup — Gmail clipping, width, unsubscribe, images, links and structure checks plus the live desktop and mobile preview are all free. Five advanced findings — Outlook/Word-engine rendering, spam-trigger word scoring, un-inlined CSS, dark-mode hints and the hidden preheader check — unlock with Pro, which is $25/mo or $199/yr across the whole Studio-Tools suite. See tools pricing.
Does my email get uploaded to a server?
No. The whole pre-flight is parsed locally in your browser — your HTML never leaves your machine, which makes it safe for unsent campaigns and client work under NDA. Litmus and Email on Acid work differently by design: you send your email to their cloud so they can render it in real clients. Neither approach is wrong; ours just never sees your email. More on how we handle files.
Is this the same as Litmus or Email on Acid?
No — and we won't pretend it is. Litmus and Email on Acid render your email inside real inbox clients (Litmus advertises 100+ clients and devices) and return true screenshots. Ours is a lightweight static pre-flight: it reads your HTML and catches the common, predictable code problems before you send. If you need client-by-client rendering proof, Litmus is still the right tool. Most rendering bugs, though, start as code issues — and those are exactly what this checker catches, free.
What does it actually check?
Around 17 checks, grouped into Deliverability, Rendering, Images, Links and Structure: Gmail's 102 KB clipping threshold, email width, the unsubscribe link, the hidden preheader, spam-trigger words, un-inlined <style> CSS, CSS the Outlook/Word engine won't honour, web fonts, responsiveness, dark-mode hints, image alt text, absolute-https image URLs, image dimensions, empty or "#" links, and the doctype/charset/viewport — each finding with a plain-English "how to fix", next to a desktop and mobile preview.
When should I still pay for Litmus or Email on Acid?
Three honest cases: when a high-stakes send needs final screenshot proof across real clients and devices; when you need seed-list spam testing against actual inbox providers rather than code-level spam signals; and when your team lives on their analytics and ESP integrations. A workflow many teams use: run every build through our free pre-flight first, then spend the paid renders only on the sends that warrant them.

Catch the code bugs free. Pay for screenshots only when a send warrants it.

~17 pre-flight checks with plain-English fixes, plus desktop and mobile previews — run entirely in your browser by a studio that hand-codes Litmus-tested emails for agencies.

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