Create fluid responsive
email designs easily
Build your own email designs in minutes with our drag-and-drop builder. Your emails will display properly in every inbox, on every device, and you won't need to write a line of code.
Nestaviz helps you create emails your way
You decide how every part of your email looks, from the overall layout down to a single table cell.
Built with Flexible Layouts
Drag responsive containers and content blocks into place, or start from a saved template. Nestaviz works out the underlying table structure for you, so the layout holds together on any screen size.
Fluid Responsive Emails
Fluid containers and automatic media queries let your design resize smoothly from a wide monitor down to a phone.
Drag & Drop Builder
Move, style and adjust every container, row, column and cell until it looks the way you want.
Media Assets & Compliance
A built-in image manager, image editor and stock photo libraries, plus header and footer templates that cover the legal essentials.
Compatible with 130+ ESPs
The HTML that Nestaviz produces works with all the major ESPs, CRMs, email clients and HTML editors. Fallback code for awkward email clients is added for you, so you don't have to write it yourself.
Desktop Clients
Displays correctly in older Outlook versions that use the Word rendering engine, as well as Apple Mail, Thunderbird and others.
Webmail Clients
Layouts are built to work around the known rendering quirks in Gmail, Yahoo! Mail and Outlook.com.
Mobile Apps
Responsive layouts with automatic breakpoints for the built-in mail apps on iOS and Android.
Built for Rapid Workflows
Nestaviz keeps track of your changes, saves snapshots to the cloud and lets you reuse elements across designs. Backups happen in the background, so you can always go back to an earlier version.
Reusable Elements
Save containers, columns, blocks and headers once, then drop them into any other design.
Live Mobile Preview
A split-screen mobile view updates as you type, so you can see straight away how the email looks on a phone.
Revision & Restore
Automatic save points let you roll a design back if something goes wrong.
Checked Before You Send
Nestaviz checks your code, flags images without alternative text and tests colour contrast. Most of the technical checks are done for you before the email goes out.
Responsive by Default
Designs adapt to each device without hand-written code, custom media queries or hours of rendering tests.
WCAG & Accessibility
Built-in checks help your emails meet WCAG accessibility guidelines, so more of your subscribers can read them.
Preview & Export
Preview the email at different device sizes, then export HTML that is ready to paste into your ESP.
Build Responsive Emails in Minutes
Put together fluid layouts in the Nestaviz drag-and-drop editor without touching any code.
Spend less time testing and more time converting.
Thousands of hours of testing have gone into Nestaviz, so your design displays correctly in over 98% of desktop, mobile and webmail clients.
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Everything You Need to Scale
The tools you need to design, check and export professional emails
Fluid Responsive Emails
Designs that are optimised for, and compatible with, all the major desktop, mobile and webmail clients.
Drag & Drop Interface
Drag blocks into the editor and adjust them until the design fits your brand and your message.
Flexible Content Blocks
Dozens of content blocks give you full control over the layout of every campaign.
Built-in Image Editor
Crop, resize and add filters to images inside the designer, with no other software needed.
Cloud Image Manager
Keep all your images in one secure cloud library and reuse them in any campaign.
Clean Responsive Code
The generated code is lean, loads quickly and follows email industry standards, which helps deliverability.
Compliant Header/Footer
Built-in headers and footers include the links the law requires, which also helps keep your emails out of spam folders.
Reusable Elements
Save any element or block and reuse it in other designs, rather than building it again each time.
Plain Text Builder
A plain text version of your email is created automatically, so every subscriber can read it.
Revision & Restore
Go back to an earlier version of a design from the revision history with one click.
WCAG & Accessibility
Accessibility features help you build emails that meet WCAG guidelines and work for more readers.
Stock Image Libraries
Search millions of stock photos from inside the editor and add them straight to your design.
API Key Support
Connect your favourite tools and services to Nestaviz using your own API keys.
Visibility Settings
Choose which elements show on desktop, on mobile or on both, for every part of your email.
Preview & Export
Preview your design at different device sizes and export clean HTML, ready to send.
There's plenty more, including Live Mobile Preview and Team Collaboration.
Supported integrations include ActiveCampaign, Brevo, Campaign Monitor, Constant Contact, GetResponse, HubSpot, Kit, Klaviyo, Mailchimp, MailerLite, Mailjet, Moosend, Omnisend, SendGrid and Salesforce Marketing Cloud.
Disclaimer: All third‑party names, trademarks, and services mentioned are the property of their respective owners and are used for identification purposes only. No endorsement or affiliation is implied.
Design Without Boundaries
Build bespoke layouts that match your brand, rather than squeezing your content into someone else's template.
Complete Creative Freedom
Start with a blank canvas instead of a rigid, overused template.
Set up the canvas to suit your brand, and change as much or as little as you like.
You control the padding, fonts and colours of every element.
We deal with the technical side, so you can concentrate on writing emails your audience wants to read.
Try It Free: No Card Needed
Secure by Design, Private by Default
Your files are kept apart from everyone else's, your traffic is encrypted, and known threats are blocked before they reach your account.
Security & Infrastructure
Your data, our back-end code and our global routing each run in separate, isolated zones. That keeps things fast and limits the damage if any one part has a problem.
Database Isolation
Every user account has its own dedicated database file, hosted on Amazon Web Services (AWS).
Centralised Computing
Back-end tasks run in a stateless environment that never keeps copies of your records.
Edge Routing and Delivery
Pages and files are served from the edge location nearest to you, wherever you are in the world.
Secure Data Flow
Every connection between our servers and your database is encrypted.
Your Private Vault (Data & Identity)
Your login details and your design data are kept separate from the day you sign up, and your business data stays under your control.
Isolated Data Safes
There's no single shared database. Each user has a separate database file, so your data never mixes with anyone else's.
Secure Infrastructure
All data is encrypted at rest and stored on Amazon Web Services (AWS).
Two-Factor Authentication
A second login check keeps intruders out, even if someone guesses your IP-locked password.
24-Hour Login Lifespans
Logins expire every 24 hours and are tied to your IP address, so stolen details are only useful for a very short time.
Encryption & Code Protection
Encryption and digital signatures mean outsiders can't read your information or change it without us knowing.
Top-Tier Encryption
Your data is encrypted all the way from your browser to our servers.
Tamper Detection
Every browser request is digitally signed. If data is changed in transit, the request is detected and blocked.
Hidden Source Code
Our code is stripped of internal details before release, so the inner workings of the system stay private.
Encrypted Web Traffic
All data moving across our network travels over HTTPS with 256-bit encryption.
Proactive Protection (Network & Interface)
We monitor the network around the clock, and firewalls block malicious traffic as soon as it's spotted.
Brute-Force Attack Blocks
Accounts are frozen automatically after repeated, suspicious failed login attempts.
Enterprise Routing
Standard data encoding helps your content get through strict corporate networks without weakening security.
Validated Input
Everything typed into a text field is filtered, which stops malicious scripts being injected into the interface.
Isolated Integrations
Third-party tools are kept separate, so a problem with outside software can't spread into the core application.
Simple, Affordable Pricing
Only £24.95 per month
One straightforward Nestaviz® plan, with every feature included.
The price is made up of a ‘Platform Subscription’ at £14.95 and one ‘Shared Seat’ at £10.
No setup fees, no hidden contracts, and you can cancel at any time.
Prepay and save:
6-Month Prepay: 5% off* | 12-Month Prepay: 10% off*
* Prepayment by bank transfer only.