Free Email Warm-Up Tools
Which email warm-up tools a startup can warm a new sending inbox with for free today, which have a free plan and which a free trial, how many inboxes and warmup emails the free plan covers, whether a card is needed and what the first paid plan costs, read from each provider's own page.
Warmup InboxFreemium plan: $0 forever
SmartReach.io14-day free trial
TrulyInboxFree forever for 1 account
Saleshandy7-day free trial
Free allowances read on each provider's own pages, all checked on or after . The scheduled check found every pick's quoted terms still on the provider's page on or after Nov 10, 2026. Warm-up tools change their free plans and trials from time to time: confirm the terms on the provider's page before you rely on it.
Email warm-up tools a startup can start with for free today include Warmup Inbox (Freemium plan: $0 forever), SmartReach.io (14-day free trial), TrulyInbox (Free forever for 1 account), Saleshandy (7-day free trial), and Snov.io (Free Trial plan, renews every month). Each of the 8 free plans below links to the provider's page that states it, with its main limit, its warm-up volume, whether a card is needed and what the first paid plan costs.
A new domain or inbox that starts sending cold email at once tends to land in spam. Warm-up tools send and receive a small, growing number of emails between your inbox and a network of real inboxes, opening and replying to them, so mailbox providers learn to trust the sender before your campaigns start.
The headline rarely tells you how far it goes. Free plans cover one inbox or a few warmup emails a day or a week, trials end after 7 or 14 days, and many cold email tools include warm-up only in their paid plans. Each tool below shows what is free, its main limit, its warm-up volume, whether a card is needed and what the first paid plan costs, quoted from the provider's own page with the date we read it.
Which tools we picked and the order they appear in are our editorial choices; the terms are the providers'. For the tools that send the campaigns themselves, see free cold email software.
Email warm-up tools with a free plan
Warm a new sending inbox with no monthly fee.
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Warmup Inbox
A free warm-up for every inbox you own, with no card
Warmup Inbox's Freemium plan is $0 forever with no card: unlimited inboxes and 15 warmup emails a week through its network of real inboxes. Its Basic plan is $15 per inbox a month billed yearly, for 75 warmup messages a day, with a 7-day free trial.
Start free at WarmupInbox (opens in new tab)Terms read on warmupinbox.com on , still stated on Warmup Inbox: the free allowance and how to start - 2
TrulyInbox
Warming one sending inbox for free, with no time limit
TrulyInbox is free forever for one email account with no card, at 10 warmup emails a day with basic deliverability tracking. Paid plans connect unlimited accounts and are priced by warmup volume: Starter is $29 a month paid monthly for 200 warmup emails a day.
Start free at TrulyInbox (opens the program details)Terms read on trulyinbox.com on , still stated on TrulyInbox: the free allowance and how to start - 3
Snov.io
Warming one inbox while you test lead search and outreach
Snov.io's Trial plan is free and renews every month, with 50 credits, 100 recipients and 1 email warm-up slot. Its first paid plan, Starter, is $39 a month on monthly billing.
Start free at Snov.io (opens the program details)Terms read on snov.io on , still stated on Snov.io: the free allowance and how to start
Email warm-up tools with a free trial
Paid warm-up and cold email tools you can try free before the first bill.
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SmartReach.io
Multichannel outreach with 10 warmup accounts on its first plan
SmartReach.io's 14-day free trial opens its full Sales Engagement plan for up to 200 prospects, with no card and no automatic billing at the end. Email Outreach Basic is $29 a month and includes 10 warmup accounts.
Start free at SmartReach (opens the program details)Terms read on smartreach.io on , still stated on SmartReach.io: the free allowance and how to start - 2
Saleshandy
Cold email with unlimited warm-up, tried free for a week
Saleshandy offers a 7-day free trial with no credit card, and every plan warms up an unlimited number of connected mailboxes at no extra cost. Starter is $34 a month billed annually.
Start free at Saleshandy (opens in new tab)Terms read on saleshandy.com on , still stated on Saleshandy: the free allowance and how to start - 3
lemlist
Multichannel outreach with lemwarm included in every plan
lemlist's 14-day free trial needs no credit card and includes the Multichannel plan's features plus 200 one-time credits, and lemwarm, its warm-up, is included in all plans. Its Email plan is from $55 a month billed yearly.
Start free at lemlist (opens in new tab)Terms read on lemlist.com on , still stated on lemlist: the free allowance and how to start - 4
Warmy
Deliverability with a dedicated expert, tried free for a week
Warmy offers a 7-day free trial with no credit card. Its plans bundle warm-up with deliverability tools, a dedicated deliverability expert and 24/7 human support; the price is set on its pricing page by sender type and volume.
Start free at Warmy (opens the program details)Terms read on warmy.io on , still stated on Warmy: the free allowance and how to start - 5
Mailivery
Warm-up plus blacklist monitoring and inbox placement tests
Mailivery lets you try every plan free for 7 days, and every plan includes warm-up, blacklist monitoring and email verification for unlimited mailboxes. Starter is $29 a month for 200 warm-up emails a day shared across mailboxes.
Start free at Mailivery (opens the program details)Terms read on mailivery.io on , still stated on Mailivery: the free allowance and how to start
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How this comparison is built
The list covers email warm-up tools, and cold email tools with warm-up built in, that a founder can use for free today without applying to a program. The order and the "best for" notes are our editorial reading of each tool's terms. Every term comes from the tool's own pricing page on the date shown, never from a third-party list; follow each link for the full conditions. A cap on inboxes or daily warmup emails, or warm-up kept for paid plans, can matter more than the headline, so the comparison quotes them wherever the tool states them.
Read the full methodologyCommon questions
Is there a free email warm-up tool?
Yes. By the terms each provider states, Warmup Inbox's Freemium plan is $0 forever for unlimited inboxes at 15 warmup emails a week, TrulyInbox is free forever for one account at 10 warmup emails a day, and Snov.io's free Trial plan includes 1 email warm-up slot.
Is Warmup Inbox free?
Warmup Inbox has a Freemium plan at $0 forever with no card, covering unlimited inboxes and 15 warmup emails a week. Its Basic plan is $15 per inbox a month for 75 warmup messages a day, with a 7-day free trial.
Which cold email tools include warm-up?
By their own pages, Smartlead's plans include unlimited email warmups, Saleshandy warms up an unlimited number of connected mailboxes at no extra cost, and lemlist includes lemwarm in all plans. Each offers a free trial.
How long should I warm up an inbox before cold email?
None of the providers here sets a fixed period on its pricing page. TrulyInbox suggests keeping 2 warmup emails for every cold email an inbox sends, every day and ongoing, rather than stopping warm-up once campaigns start.
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