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Email Campaign Intelligence

Your Email Tool Shows What.Sendlens Shows Why.

Connect all your email platforms, unify your campaign data, and let AI reveal the design patterns behind your top-performing emails.

Connect Your ESP — FreeSee How It Works
Campaign Performance
Welcome Series — Flow
42.3%
Avg. Open Rate
AI Design Tags
Single ColumnStrong CTAEditorial ToneSparse DensityHero Image2 CTAs
Pattern Discovery

Campaigns with single-column layout + strong CTA get 2.3x higher click rates

Confidence88%
Multi-ESP Sync
AC
ActiveCampaign
248 campaigns synced
Br
Brevo
127 campaigns synced
Kl
Klaviyo
Coming soon

Join 10,000+ email marketers who trust Sendlens

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ConversionMeter
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Stickynessie
C
Colibri.works
K
Knowle
F
Fanalists
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ConversionMeter
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Stickynessie
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Colibri.works
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Knowle
F
Fanalists
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ConversionMeter
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Stickynessie
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Colibri.works
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Knowle
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Fanalists
Features

Smarter Tools to
Decode Your Email Performance

Explore powerful capabilities designed to simplify email analytics and boost campaign results.

Unified Multi-ESP Sync
01

Unified Multi-ESP Sync

Connect ActiveCampaign, Brevo, and more. Pull campaigns, metrics, and automation flows into one normalized dataset — no data warehouse required.

AI Email Analysis
02

AI Email Analysis

Vision-based analysis of every email: layout, tone, CTA strength, design quality, spam risk, and 15+ structured fields — fully automated.

Automation Flow Bundling
03

Automation Flow Bundling

Groups individual automation emails into parent sequences with aggregated flow-level metrics and per-step breakdown. See flows as flows.

Performance Pattern Discovery
04

Performance Pattern Discovery

Cross-references AI design tags with actual metrics to surface patterns you didn't know existed. See what your top-performing emails have in common.

Pricing Plans

Flexible Pricing Plans

Choose a plan that fits your needs with flexible pricing and options for every stage of growth.

Essentials

For email marketers who need regular AI analysis and clean exports.

Start Essentials
€25/month
Unlimited campaign sync
50 AI credits / month
CSV exports
Auto-analyze on sync
Performance pattern discovery
Email support
Pro Plan

For power users and agencies managing high-volume campaigns across ESPs.

Upgrade to Pro
€45/month
Everything in Essentials
250 AI credits / month
Priority support
Advanced analytics
Custom branding on exports
Dedicated account support

No payment required to start. Try the free tier — unlimited sync + 10 AI credits.

Benefits

The Powerful Advantages
Your Team Gets

Unlock key benefits that boost your email marketing performance and save hours of manual work.

End Reporting Hell Week

Stop spending days copying data from multiple ESPs into spreadsheets. One-click normalized exports across all platforms.

See Why Emails Perform

Opens and clicks tell you what happened. AI analysis tells you why — layout, tone, CTA strength, and 15+ design attributes.

Unified Cross-ESP Data

Every ESP exports differently. Sendlens normalizes it all into one clean, consistent dataset ready for analysis.

Automation Flow Clarity

Your welcome sequence isn't 47 separate campaigns. See flows as flows, with aggregated and per-step metrics.

AI-Powered Insights

15+ structured fields per email — layout type, tone, CTA strength, visual density, color palette, and more. All automated.

Export-Ready Data

Clean CSVs ready for Google Sheets, Looker, or PowerBI. Platform-neutral schemas, no data warehouse required.

Integration

Connect Your Favorite ESPs

Seamlessly integrate with the email platforms you already use and love.

AC
ActiveCampaignLive
Br
BrevoLive
Kl
KlaviyoComing Soon
MC
MailchimpPlanned
HS
HubSpotPlanned
CK
KitPlanned
Explore Integrations
Blog and Insights

Insights, Guides, and Tips
to Help You Grow Smarter

Discover expert insights, practical guides, and actionable tips to fuel your growth.

Analytics6 min

Why Your ESP's Reporting Is Missing the Full Picture

Not all email analytics are built the same. Learn what's missing from your ESP data and how to fill the gaps.

Strategy7 min

How to Analyze Email Design at Scale with AI

Stop guessing what works. Learn how AI can systematically decode your email design and link it to performance.

Growth5 min

From Fragmented Data to Unified Email Intelligence

A playbook for turning scattered ESP data into a single source of truth that drives better email decisions.

FAQ

Your Questions
Answered

Find clear answers and solutions to all your questions quickly.

Sendlens is an email campaign intelligence platform designed for freelance email marketers, marketing managers at SMEs, and digital agencies. It connects to your ESPs, normalizes your campaign data, and uses AI to analyze what your emails look like and how that affects performance.
Sendlens currently supports ActiveCampaign and Brevo (Sendinblue), with Klaviyo coming soon. We're actively expanding our integration library based on user demand. Simply connect with your API key — setup takes under 2 minutes.
Sendlens renders each email as a screenshot and analyzes it using a multimodal AI model. It extracts 15+ structured attributes including layout type, visual tone, CTA strength, design quality, color palette, content density, and spam risk signals.
No. Unlike ETL tools that require a data warehouse and SQL knowledge, Sendlens handles everything — syncing, normalization, and analysis — in a simple web interface. Export clean CSVs directly to Google Sheets, Looker, or PowerBI.
Yes. Your data is encrypted in transit and at rest. We use industry-standard security practices and never share your campaign data with third parties. API keys are stored encrypted and used only to sync the data you authorize.
Absolutely. The free tier includes unlimited campaign sync and 10 AI analysis credits — no credit card required. Connect your ESP, explore your normalized data, and run AI analyses to see the value before committing to a paid plan.
Email Campaign Intelligence

Your Emails Already
Have the Answers.

Connect your ESP and let Sendlens show you the design patterns behind your best-performing campaigns.

Start Free Today

No credit card required. Connect, sync, and explore your data for free.