Subject Line Emoji Render Checker
Paste a subject. The tool shows the unicode codepoints and the per-platform emoji image so you see what your recipient actually sees.
| Glyph | Codepoint | Risk on old Outlook |
|---|---|---|
| 🚀 | U+1F680 | Low |
You analyzed one send. Outsolvi analyzes every send, forever.
Subject scores, preview tests, header parses are one-shot. Outsolvi runs the same analysis on every email you send and surfaces patterns: which subjects open, which preheaders convert, which threads stall. From $7/user/mo yearly.
Get the continuous versionExtracts emoji codepoints from your subject line or body and classifies them by Unicode version, flagging the ones added post-2020 that don't render on older Outlook builds. Emoji display in your own browser's font here, so use the Unicode version as the compatibility signal rather than the glyph on screen.
Before sending a subject with emoji to a mixed-client audience. Old Outlook (Windows desktop pre-2021) renders many post-2018 emojis as `?`.
FAQ
Are emoji good for subject lines?+
Sometimes. B2C: usually yes. B2B sales: usually no, feels marketing-y. Test in your audience; the open-rate lift is real but the reply-rate effect is often neutral or negative for sales mail.
Keep going
Articles, glossary entries, and other tools on the same topic.
Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.