Best Email Warmup Software in 2026
Updated
In short: Warmerly is ranked #1 of 24 as of 5 October 2026, ahead of SendScale Email Warmup and TrulyInbox. The best-ranked option with a free plan is SendScale Email Warmup. The lowest first paid tier on this page is TrulyInbox at $1.83/mo.
Email warmup software gives you options for managing mailbox activity around outreach. Compare custom warmup schedules and daily email limits with the mailbox providers supported and the ability to manage multiple mailboxes. Warmerly, TrulyInbox, and EmailWarmup are among the entries covered. Spam monitoring and the warmup network provide further details to weigh alongside those controls. Check free-plan availability and paid-from pricing to understand access and cost. Your provider mix and mailbox count can help you decide which scheduling, monitoring, and network features deserve the closest attention.
24 email warmup software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
4 of the 24 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | WarmerlyWeb · Android · API | Two bars | — | 2 of 6 | $19/mo | 6.5 | |
| 2 | SendScale Email WarmupWeb · API | Two bars | — | 1 of 6 | $3,528/mo | 6.4 | |
| 3 | TrulyInboxWeb · API | Two bars | — | 1 of 6 | $1.83/mo | 6.4 | |
| 4 | EmailWarmupWeb · API | One bar | — | — | 1 of 6 | $19/mo | 5.4 |
| 5 | MailreachWeb · API | One bar | — | — | 1 of 6 | $19.50/mo | 5.4 |
| 6 | darkzwarmerWindows · Mac · Linux · Self-hosted | One bar | — | — | 3 of 6 | — | 5.3 |
| 7 | WarmEnvelopesWeb | One bar | — | 1 of 6 | €9/mo | 5.2 | |
| 8 | InboxWarm.aiWeb · API | One bar | — | — | 1 of 6 | $5/mo | 5.1 |
| 9 | WarmupHeroWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 10 | Inbox WarmupWeb · API | One bar | — | — | 1 of 6 | $39/mo | 5.0 |
| 11 | InboxPlanWeb | One bar | — | — | 1 of 6 | — | 5.0 |
| 12 | MailStrikeWeb · API | One bar | — | — | 1 of 6 | $3.75/mo | 5.0 |
| 13 | MailwarmupWeb | One bar | — | — | 1 of 6 | $19/mo | 5.0 |
| 14 | WarmbaseWeb | One bar | — | — | 1 of 6 | $9/mo | 5.0 |
| 15 | Warmup InboxWeb · API | One bar | — | — | 1 of 6 | $15/mo | 5.0 |
| 16 | MailToasterWeb | One bar | — | — | 1 of 6 | — | 4.9 |
| 17 | Swokei Email WarmupWeb | No signal | — | — | 1 of 6 | — | 4.8 |
| 18 | EmailWarmup.comWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 19 | FolderlyWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 20 | InboxAllyWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 21 | WarmboxWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 22 | WarmforgeWeb | No signal | — | — | 1 of 6 | — | 4.7 |
| 23 | MailwarmWeb | No signal | — | — | 1 of 6 | — | 4.6 |
| 24 | WarmyWeb | No signal | — | — | 1 of 6 | — | 4.6 |
Compare all 24 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Warmup network | Daily email limit |
|---|---|---|---|---|---|---|---|---|
| 1 | Warmerly | 6.5 | Free plan | $19/mo | Yes | — | private | — |
| 2 | SendScale Email Warmup | 6.4 | Free plan | $3,528/mo | Yes | — | private | — |
| 3 | TrulyInbox | 6.4 | Free plan | $1.83/mo | Yes | — | shared | 200 /day |
| 4 | EmailWarmup | 5.4 | No | $19/mo | Yes | — | shared | 100 /day |
| 5 | Mailreach | 5.4 | No | $19.50/mo | Yes | — | — | — |
| 6 | darkzwarmer | 5.3 | No | — | — | — | private | — |
| 7 | WarmEnvelopes | 5.2 | Free plan | €9/mo | Yes | — | private | 1,000 /day |
| 8 | InboxWarm.ai | 5.1 | No | $5/mo | No | — | private | 100 /day |
| 9 | WarmupHero | 5.1 | No | — | Yes | — | shared | — |
| 10 | Inbox Warmup | 5.0 | No | $39/mo | No | — | — | — |
| 11 | InboxPlan | 5.0 | No | — | No | — | private | — |
| 12 | MailStrike | 5.0 | No | $3.75/mo | No | — | shared | 30 /day |
| 13 | Mailwarmup | 5.0 | No | $19/mo | No | — | shared | 50 /day |
| 14 | Warmbase | 5.0 | No | $9/mo | No | — | shared | 50 /day |
| 15 | Warmup Inbox | 5.0 | No | $15/mo | Yes | — | — | — |
| 16 | MailToaster | 4.9 | No | — | No | — | shared | 50 /day |
| 17 | Swokei Email Warmup | 4.8 | No | — | No | — | shared | 50 /day |
| 18 | EmailWarmup.com | 4.7 | No | — | No | — | — | — |
| 19 | Folderly | 4.7 | No | — | No | — | — | — |
| 20 | InboxAlly | 4.7 | No | — | No | — | — | — |
| 21 | Warmbox | 4.7 | No | — | No | — | — | — |
| 22 | Warmforge | 4.7 | No | — | No | — | — | — |
| 23 | Mailwarm | 4.6 | No | — | No | — | — | — |
| 24 | Warmy | 4.6 | No | — | No | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which email warmup software is ranked first on Freedom251?
Warmerly is ranked #1 of 24 with a score of 6.5. SendScale Email Warmup is second and TrulyInbox third.
How many of these have a free plan?
4 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, TrulyInbox has the lowest first paid tier we found: $1.83/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.