A real AMPscript editor with the renderer inside. Write and edit your templates here - executed locally, validated against Salesforce's own test corpus - re-rendering on every keystroke with real test data, scenarios, and an AI that can't hallucinate functions.
A stakeholder wants one change. So: open Marketing Cloud, copy the latest source,
paste it into your editor, edit blind, paste it back, publish, test send, screenshot,
email - and then the next request arrives.
AmpSend is where the code lives instead.
AMPscript syntax highlighting, inline diagnostics as you type, click any problem to fix it. Your templates live and get edited here - not in a preview toy.
A full AMPscript interpreter in your browser, differentially tested against Salesforce's own corpus. Every keystroke re-renders with your real test data.
Name your cases - happy path, missing first name, empty cart - and flip between them. Untick any attribute to preview the IsNull path without deleting data.
Send stakeholders one URL. They flip templates, switch scenarios, and toggle attributes themselves - no account, no screenshots, always your latest push.
Attach the brief - or a screenshot of the design - and the assistant drafts the template in AMPscript that actually runs. It knows the functions that exist, it reads your data extensions and content blocks, and it edits your code in place.
Bring your own Anthropic API key today - hosted AI arrives with accounts.
From pasted template to stakeholder approval, without leaving the browser.
Start from a brief with the AI, or drop in existing HTML + AMPscript. It renders immediately - errors, warnings, and client-compat findings included.
Define the data cases the template must survive: happy path first, then every edge case that has ever bitten you.
One click on any problem prefills the assistant. Apply its fix in place and watch the preview prove it.
One link. Stakeholders answer their own "what if" questions with scenario and data toggles.
The whole developer loop ships now, free - and accounts, cloud sync, and hosted AI are here too. Marketing Cloud integration is next.
The studio runs in your browser and always will. Accounts add the cloud around it - sync, sharing, sending, and included AI.
Billing by Polar. Your templates render locally on every plan - the cloud only ever holds what you choose to sync or share.
The inner loop you deserve: write AMPscript, see the truth instantly, and stop publishing to preview.
Turn "did anyone test the missing-name case?" into named scenarios that anyone can flip through in seconds.
A campaign per project, an email per template, shared brand blocks across all of them - client-ready structure.
Approvals without meetings: one link where reviewers switch cases and toggle data themselves.
Yes. AmpSend runs a full AMPscript interpreter in your browser. Paste subscriber data as JSON and data extensions as CSV, and the template renders instantly - no SFMC org, no login, no server.
84 functions: string, math, date and formatting, utility, data extension reads and writes (Lookup, LookupRows, InsertDE, UpsertDE and more), content blocks, TreatAsContent, and encryption/encoding (MD5, SHA256, Base64, AES). Platform-bound functions like API calls and SMS produce clear errors instead. Every function has its own reference page with a live example.
No. Rendering happens entirely client-side. Templates, subscriber data, and data extensions are stored only in your browser's localStorage and never touch a server. (Share links are the one exception - creating one stores that snapshot so your stakeholders can view it.)
The rendered HTML is checked against the open caniemail dataset: 200 detectable HTML/CSS features across Outlook (Windows), Outlook.com, Gmail, Apple Mail, Yahoo, and Samsung Email, each finding linking to its caniemail page.
Not yet - SSJS and GTL blocks pass through as literal text. Both are on the roadmap.
Free, no signup, and your templates never leave your machine.