TestSubject
Test how your email subject line displays on mobile devices.
TestSubject launched on March 2, 2016 with 133 votes, #285 of 4,409 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 10 years on.
What it does
Test How Your Email Subject Lines Appear On The Most Popular Mobile Devices
Most people decide to open an email based on two factors, the sender name and the subject line. Mobile email clients and devices often truncate subject lines and sender names, leading to sometimes hilarious but frequently disastrous results: Cringeworthy, right? We send a lot of email here at ZURB, and we needed a way to help compose perfect subject lines quickly and easily. Unable to find anything that fit the bill, we created TestSubject. TestSubject is a simple tool for testing how your email subject line and sender name look on the most popular mobile devices and email clients*. Just copy and paste your text and you’ll get instant previews. Test before you send for more peace of mind.…from zurb.com
Does a similar job
all alternatives →
Email Testing By Inbox Pirates2022 · inboxpirates.com · ▲355Preview, analyze & test emails with one click
Send Check It Subject Line Tester2017 · sendcheckit.com · ▲206Write better email subjects with this tool
More life & fun this month
the category →
A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.
Life & fun · 1d ago · permit.petercai.com
- IV
Life & fun · 13d ago · tanzaniaeducationproject.org
Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
Life & fun · 14d ago · bigwords.page
Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.
Life & fun · 8d ago · guitoro.com
Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
Life & fun · 12d ago · carrierexplode.com
Life & fun · 22d ago · space.bl2.net
Source: Product Hunt launch ↗
Launched alongside, March 2016
the whole month →
Franz▲877Franz combines WhatsApp, Slack, Telegram, Gmail, Outlook, and native Signal in one desktop app with AI summaries, workspaces, and privacy-conscious local features.
Work · 2016 · meetfranz.com
