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lemlist alternative

The open-source lemlist alternative

Reach people on email, LinkedIn and WhatsApp from accounts you own, with one record per person and one inbox for the answers. lemlist is a polished hosted platform with its own lead database. AgentSDR is the one you run yourself.

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Analytics

How conversations turn into meetings and customers, and which channels bring them in.

Last 4 weeks

Replies

512

17.2% improved versus the previous period

from 386 people

Positive

104

25.3% improved versus the previous period

27% of people who replied

Meetings

37

27.6% improved versus the previous period

vs 29 previous period

Customers

6

50% improved versus the previous period

vs 4 previous period

Median first response

38m

46.5% improved versus the previous period

vs 1h 11m previous period

Replies by sentiment

Inbound replies each day, by the category they were classified into.

  • Interested

    132

  • Customer

    12

  • Not interested

    95

  • Other

    80

  • Unclassified

    4

Needs attention

Right now, regardless of the date range.

Pipeline now

Open records by category, right now, and how far along the funnel they are.

  • Interested10350%
  • Customer94.3%
  • Not interested6431%
  • Other2713%
  • Unclassified52.4%

Funnel stages · darker as they advance

  • Information Requested · Interested41
  • Demo Requested · Interested18
  • Meeting Requested · Interested22
  • Meeting Done · Interested15
  • Trial User · Interested7
  • Customer · Customer9

Stage moves this period

Records moved into a new stage, by the category they moved into.

  • Interested9249%
  • Customer63.2%
  • Not interested5831%
  • Other3117%

Top stages

  • Not Required Right Now · Not interested58
  • Information Requested · Interested46
  • Out of Office · Other31
  • Meeting Requested · Interested29
  • Demo Requested · Interested17

Workflow

Every record by workflow state, right now.

  • Paused92%
  • Action required235.1%
  • Waiting11826%
  • Closed8719%
  • Idle20446%
  • Other (2)71.6%

AI assistant

262 drafts generated in this period.

11 awaiting review

Drafts sent

214

27.4% improved versus the previous period

AI drafts that went out

Classified

498

18.3% improved versus the previous period

Replies the AI labelled

Override rate

6.4%

29.7% improved versus the previous period

Labels a person changed

71% of sent drafts went out unedited (151 of 214)

  • Sent as-is

    151 62%

  • Sent edited

    63 26%

  • Discarded

    29 12%

Outreach

Where these conversations came from. Open a channel for its detail.

Channels

How each channel performed in this period. Select a row to open it.

Channel comparison
ChannelReachedRepliedReply ratePositiveOpen
2,874118
4.1%
29
1,902171
9%
47
54297
18%
28

Conversion funnel

From first touch to customer.

  1. Reached
    5,318
  2. Replied
    7.3%386
  3. Positive
    26.9%104
  4. Meeting
    35.6%37
  5. Customer
    16.2%6

Counts for this period — not one cohort followed through.

The short version

AgentSDR and lemlist, in a line each

lemlist is a hosted multichannel outreach platform with a lead database, deliverability tools and AI agents.

AgentSDR

Email, LinkedIn and WhatsApp as separate campaigns that stop each other on a reply, with an AI CRM behind them.

lemlist

One workflow across email, LinkedIn, calls, WhatsApp and SMS, with a contact database and warm-up built in.

Side by side

AgentSDR vs lemlist, feature by feature

Both reach leads across several channels and merge replies into one inbox. The difference is how a sequence is built and who hosts it.

AgentSDR compared with lemlist, feature by feature
FeatureAgentSDRlemlist
Where it runs
YesSelf-hosted. AGPL-3.0 source on your own server and database
Hosted by lemlist, with a 14-day trial
How you pay
No seat or contact fees from AgentSDR. You pay for your server and the services you connect
Tiered subscriptions (Email, Multichannel, Enterprise) with optional credits for enrichment and signals
Contact database
NoNo built-in contact database. You import lists or connect providers with your own keys
YesA built-in lead database of 650M+ contacts per its site, with email and phone finders
Email sending
PartlyFrom your own Google Workspace mailboxes only
YesEmail senders on every plan, with lemwarm warm-up and deliverability tools
LinkedIn
YesSeveral LinkedIn accounts through Unipile, each with its own daily limit and working hours
YesLinkedIn automation on the Multichannel plan
WhatsApp
YesMessage campaigns and recorded calls from your own number, through Unipile
PartlyWhatsApp as an add-on to the Multichannel plan
Mixed-channel sequences
PartlyEach campaign is one channel. A reply on any channel stops the lead's others
YesOne workflow across email, LinkedIn, calls, WhatsApp and SMS
Calls and SMS
PartlyWhatsApp calls placed from the app and recorded. No SMS
YesIn-app calling and SMS
Unified inbox
YesOne inbox for email, LinkedIn and WhatsApp replies
YesA unified inbox across senders and channels
AI on replies
YesReplies classified, moved through a pipeline and answered with approved drafts
Not comparedNot compared. Its site describes AI agents for signals and enrichment

“Not compared” means we could not confirm it from lemlist’s own site, so we have not claimed either way.

How AgentSDR works

What you get instead of lemlist

Multichannel

LinkedIn and WhatsApp that behave like part of one system

People are one record, so a LinkedIn acceptance, a WhatsApp reply and an email bounce all land on the same person. Do Not Contact is checked on every channel before each send.
  • A reply on any channel marks enrolments replied
  • 30 LinkedIn invitations a day on premium accounts, 5 on free, by default
  • WhatsApp by default: 25 new chats a day per number, 10 seconds between sends

One queue

Every channel's reply, drafted and waiting

Replies from email, LinkedIn and WhatsApp reach one queue, each with a category and a drafted answer. Nothing sends until you approve it.
  • Per-channel limits you set once as Sending rules
  • Drafts built from your own knowledge base
  • Keyboard-first review
channels from one lead record: email, LinkedIn, WhatsApp
3
enrichment providers you can connect with your own keys
15
emails a day per mailbox by default, changeable
30
per seat, sender or contact from AgentSDR
$0

Being fair

Where lemlist is the better choice

Open source is not the right answer for everyone. If one of these describes you, use the other tool.

  • You want contacts included

    lemlist ships with a lead database and finders. AgentSDR has none, so you bring a list or pay a provider separately.

  • You want one sequence across channels

    In lemlist a single workflow can mix email, LinkedIn, calls, WhatsApp and SMS. AgentSDR campaigns are per channel.

  • Deliverability tooling matters most

    lemlist includes lemwarm, its own warm-up product. AgentSDR sets sensible limits per mailbox but does not warm mailboxes up.

  • You don't want to run anything

    lemlist is hosted, supported and maintained for you. AgentSDR needs a server and someone who updates it.

Why teams switch

Reasons to move from lemlist to AgentSDR

  • No per-seat model

    AgentSDR charges nothing per user, sender or contact. The whole team shares one deployment, with roles for owners, admins and members.

  • WhatsApp calls and an AI CRM

    Calls are recorded and transcribed on your own model key, and every reply is classified and drafted for you.

  • Your own database

    Every lead and message sits in PostgreSQL you control, which matters if customers ask where their data lives.

  • Agencies get real separation

    Each client can be its own organization on one deployment, with its own accounts, leads and limits.

Getting started

Moving from lemlist

A day of work for a typical list. Nothing here touches your old account until you decide to close it.

  1. 01

    Export your leads

    Download campaign leads as CSV, including any custom columns you merge into copy.
  2. 02

    Connect your accounts

    Add Google Workspace mailboxes, then Unipile for LinkedIn and WhatsApp numbers.
  3. 03

    Rebuild each sequence

    Write the email, LinkedIn and WhatsApp steps. Columns become merge fields like {{jobTitle}} and you can preview a real lead.
  4. 04

    Launch at safe limits

    Keep the defaults for a few weeks, then adjust Sending rules once replies and bounces look healthy.

FAQ

Questions, answered

Is there an open-source alternative to lemlist?

AgentSDR is open source under AGPL-3.0 and runs email, LinkedIn and WhatsApp campaigns with a shared inbox and AI CRM. It has no built-in contact database and no email warm-up, both of which lemlist includes.

Can AgentSDR put email and LinkedIn steps in one sequence?

No. Each campaign belongs to one channel. They are linked through the person: a reply on any channel stops that person's other campaigns.

Does AgentSDR charge per seat or per sender?

No. AgentSDR adds no seat, sender or contact fees. You pay for your server and for the services you connect, such as Google Workspace and Unipile.

Does AgentSDR warm up mailboxes?

No. It protects mailboxes with low defaults: 30 emails a day per mailbox and a random 18 to 24 minute gap, inside sending hours. Warm a new mailbox with a separate tool.

Does it support WhatsApp?

Yes. Link your number in Unipile to send message campaigns with timed follow-ups, and place recorded calls from a Chrome extension. New numbers cannot start new chats for 24 hours.

Can I move my lemlist leads?

Export them as CSV and import into a campaign or the lead database. Rows need an email or a LinkedIn URL. Sequences are rebuilt by hand.

Keep exploring

lemlist is a trademark of its owner. Comparison based on publicly available information as of October 2026.

Multichannel without the seat count

Deploy it once, connect your mailboxes and numbers, and let the whole team work from one inbox.

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