Bannerbear and Polotno SDK both produce images and video from templates, and they're built for opposite jobs. Bannerbear is for systems that generate media: your team designs templates in its hosted editor, your code or no-code tools call the API, and your users receive finished assets. Polotno SDK is for products where users design media: your customers open an editor inside your app and make the design themselves. One question decides it: do your users need to design inside your product?
Pick the one that matches what you're building
Pick Bannerbear if…
- You generate assets from your own data: your team controls the templates and your code triggers the renders.
- You want a broad no-code ecosystem: Bannerbear lists 50+ app integrations, including Zapier, Make, and Airtable. Polotno has none, so you call its API from your code.
- Your pipeline chains several steps: Workflows run templates, animations, and media tools such as subtitles and AI voiceover behind one API endpoint.
- You want AI inside the render: background generation, background removal, and face detection run at render time, with no AI provider to connect.
Pick Polotno SDK if…
- Your users need to design or edit inside your app: Bannerbear says its current V5 platform has no embeddable editor, and its older V3 embed opens one template through an expiring link. Polotno gives you a full editor in your own UI.
- You want one JSON schema for editing and rendering: the same data shape runs from canvas to API, so user-edited variants and programmatic generation share one pipeline.
- You need to self-host: Polotno offers self-hosted editing and rendering. Bannerbear renders on its cloud, with your own storage bucket as an option.
- You want self-hosted rendering with no per-render fee: Bannerbear bills renders in credits. Polotno charges a fixed license fee by custom quote, so compare the two models at your volume.
How Bannerbear and Polotno differ
The two products overlap on output (PNG, JPEG, PDF, MP4), and they differ in four ways that affect the decision.
1. Who uses the editor
Bannerbear's template editor is built for your team: you log in, design templates, and expose them to your code through the API. Two features reach your users. Forms are hosted forms that people without a Bannerbear login can fill in, and you can embed them in your site. On the older V3 platform, Sessions put the template editor in an iframe, or on a link you send, for one template at a time, through an expiring URL. Your users don't need a Bannerbear account. Bannerbear says its current V5 platform doesn't include an embeddable editor, and the V5 API lists no equivalent.
Polotno SDK is a JavaScript editor you mount inside your own application. Your users open it, then drag, type, upload, and position. They can create templates and save them to your backend.
If end-user design is a core feature of your product, this difference decides the comparison. On Bannerbear you'd build on V3 within those limits, or write the editor yourself. Bannerbear says V3 features and API endpoints keep working, so ask Bannerbear how V3 fits your plans before you build on it.
2. Who keeps the templates
Bannerbear keeps templates in your hosted account. A render request swaps text and image values into a template, and the V5 API can also create, read, and update a template's full configuration. That configuration uses Bannerbear's own format.
Polotno uses a single JSON schema for editing and rendering. The same file describes a template a user edited in the browser and drives a Cloud Render call seconds later. Templates are files you store, version, diff, and migrate.
With one data model, you skip the translation layer between your editor and your renderer, and your templates stay in your own systems.
3. Where rendering happens
Bannerbear renders on its managed cloud. We found no self-hosted rendering in its pricing, docs, or API spec. It does limit what stays there: you can send generated media to your own S3 or R2 bucket, which its enterprise page calls self hosting, and its Enterprise plan adds Zero Data Retention.
Polotno SDK renders in three places: through the Cloud Render API, which offers webhook callbacks for finished jobs, on your own servers, or in the browser on the user's device. The quickest route is Cloud Render: you send the JSON and get the file back in seconds, with no servers to run. Self-hosting stays an option when your data has to stay on your side.
You pick per workload. A SaaS handling regulated data can self-host, a consumer app can export in the browser, and a backend job can call Cloud Render, with one schema across all three.
4. What "media" means
Bannerbear leads with images and now covers produced media: animation templates with keyframes, video joins, AI subtitles and voiceover, slideshows, and Workflows that chain these steps into one API endpoint.
Polotno handles image, video, and PDF in one editor and one schema. Video editing gives your users a timeline with trim, split, audio tracks, and animation, and it stops short of a full non-linear suite.
If your users edit the video, Polotno gives them the timeline. If your backend subtitles and voices a video with nobody watching, Bannerbear has those tools built in.
Bannerbear and Polotno side by side
| Polotno SDK | Bannerbear | |
|---|---|---|
| What it is | Design editor SDK you ship in your bundle | Hosted media generation API |
| Editor for your users | Full editor in your own UI | V3: iframe, one template per expiring link. V5: none, per Bannerbear |
| Forms with no login | You build them | Hosted forms you can embed |
| Templates | JSON files you store | In your Bannerbear account, readable by API in its own format |
| Self-hosting | Editing and rendering, with every license, unlimited under fair use | None found, your own S3 or R2 bucket for storage |
| Rendering | Cloud Render API, your servers, or the browser | Bannerbear's cloud |
| Design data | Reaches Polotno servers only with Cloud Render or AI features | Stored and rendered on Bannerbear's cloud, Zero Data Retention on Enterprise |
| Output | PNG, JPEG, PDF, PPTX, GIF, MP4, plus SVG and HTML outside Cloud Render | Images, PDF, and video |
| No-code integrations | None: you call the API from your code | 50+ app integrations |
| Multi-step pipelines | You build them | Workflows behind one endpoint |
| Signed render links | You build them | Instant URLs |
| AI | Background removal, AI text, and Expand, Generative fill, and Upscale on the provider you connect | Runs at render time, with a model choice per layer |
| Pricing model | Fixed license fee by custom quote, no per-render fee when self-hosted, Cloud Render billed per use | Monthly plans with API and AI credits |
| Evaluation | 30-day free trial for development and prototyping, no credit card | Free trial with a non-renewing credit allowance |
When Bannerbear is the right call
Bannerbear fits more teams than this page might suggest. If your product doesn't need an editor for end users, if your team designs templates and your code triggers renders, Bannerbear is a more turnkey choice for that workflow. Your connectors are ready, and Workflows, Instant URLs, and render-time AI cover jobs you'd otherwise build yourself. For a marketing-ops team automating social images out of a CRM, the right answer is usually Bannerbear.
Polotno starts to fit once you need your customers to do the designing. You can test it with the 30-day free trial, no credit card needed.
FAQ
Can I migrate Bannerbear templates to Polotno?
There is no automatic transfer. Bannerbear documents no export format, though its V5 API returns a template's configuration, so a converter is possible. You'd map text layers to text elements and image layers to image elements. We'd recommend rebuilding templates unless your library is large.
