OKZest is a Hyperise alternative for agencies and email marketers - ESP merge tags, open-time dynamic image URLs across Mailchimp, Klaviyo and ActiveCampaign, plus a full editor, REST API and Zapier/Make - not just sales-outreach overlays.
Hyperise is known for personalized outreach visuals - dropping a prospect's name or photo into an image for sales emails and LinkedIn-style campaigns. That works well when the job is one-to-one sales personalization.
OKZest is a Hyperise alternative for marketing agencies and email marketers who need the same personalization idea at campaign scale. OKZest personalizes email images with ESP merge tags. It works across Mailchimp, Klaviyo, and ActiveCampaign. It supports open-time / dynamic image URLs, so creatives can update when a recipient opens the email - even after send. When you need automation, OKZest has a REST API plus Zapier and Make.
Where Hyperise leans on overlays for outreach, OKZest gives you a full visual design editor, live website screenshot layers, robust fallback text, team collaboration on every plan, and creatives that work beyond a single sales motion - email, SMS, certificates, landing pages, and web apps.
Pricing is built to let you try before you scale. OKZest's free plan includes 2,500 watermarked images per month with no credit card.
Choose Hyperise if your main use case is sales-outreach overlays. Choose OKZest if you run multi-ESP email campaigns, agency client work, or need an editor and API around the same personalized-image system.
| Feature | OKZest | Hyperise |
|---|---|---|
| Multiple merge tags per image (name, date, location…) | ||
| ESP merge tags in Mailchimp, Klaviyo & ActiveCampaign | Sales-tool focused | |
| Open-time / dynamic image URLs (update after send) | Limited | |
| Email image personalization for marketing campaigns | Secondary | |
| Fallback text for missing or empty merge tag data | Basic | |
| Visual drag-and-drop design editor | Overlay-led | |
| Team workspace & multi-user collaboration | Limited | |
| Built for agencies / multi-client campaigns | Sales teams first | |
| REST API for programmatic image generation | Limited | |
| Zapier & Make automation | Limited | |
| ESP-ready dynamic image URLs (no file downloads) | ||
| Live website screenshot capture as an image layer | ||
| Certificates & non-email creatives | ||
| Free plan — no credit card required | ||
| Transparent, usage-based pricing |
OKZest personalizes email images with ESP merge tags and supports open-time / dynamic image URLs - so each recipient sees their data, and creatives can still update after the email is sent.
Insert a dynamic image URL into Mailchimp, Klaviyo, ActiveCampaign, HubSpot or any ESP with one line of HTML. Built for campaigns and agencies - not only one-to-one sales sends.
OKZest's editor lets you build bespoke templates from scratch, or start from a ready-made design - with full control over every layer, font, color, and layout.
Marketers design in the editor. When you need CRM or pipeline automation, the same templates are available via REST API, Zapier and Make - without switching tools.
Capture a live screenshot of any URL and embed it directly into a template layer - unique to OKZest, and powerful for product previews and personalized landing pages.
The free plan includes 2,500 watermarked images per month for testing - no credit card needed. Upgrade only when you need to scale.
If you outgrew Hyperise for marketing email or agency work, the move to OKZest is straightforward.
Most teams can validate a like-for-like campaign on the free plan before cutting over production sends.
Yes. OKZest is a Hyperise alternative for agencies and email marketers who need merge-tag images across ESPs, plus a full editor and API - not only sales-outreach overlays.
Yes. OKZest personalizes email images with ESP merge tags so each recipient sees their own data in the creative.
Yes. OKZest supports open-time / dynamic image URLs, so creatives can update when the recipient opens the email.
Yes. OKZest works across Mailchimp, Klaviyo, and ActiveCampaign - and other ESPs that accept a standard image URL.
Yes. You can personalize prospect names and company data in images for outbound email - and reuse the same system for marketing campaigns, certificates, and more.
If you manage multiple clients on different ESPs and want reusable templates, team workspaces, and an API path, OKZest is built for that. Hyperise remains a fit for sales teams focused on outreach overlays.
Join hundreds of marketing teams already sending personalized images that get results.
Free plan includes 2,500 watermarked images/month · No credit card required
Take a look at OKZest versus the competition and learn how awesome we are.