Downloads
Links ending in .pdf, .mp3, .mp4, .wav, .epub, .docx, .pkpass and more are downloaded and opened with the native viewer or share sheet. Invoices, tickets, exports from Your own API or serverless functions: all fine.
What works out of the box
Save to camera roll
Navigate to savethisimage://?url=https://…/photo.jpg and the image lands in the user's Photos app. Great for generated images, certificates and QR codes.
Uploads from camera and gallery
Every file input in your ChatGPT & Codex app opens the native picker with camera, gallery and files. Use accept="image/*" and capture="environment" to go straight to the camera.
Prompt for ChatGPT & Codex
Paste this into ChatGPT & Codex to implement the web-app side. Review the result, publish, then test inside the WebViewGold app.
Prompt for ChatGPT or Codex
Review this web app for file downloads and uploads inside a native WebView wrapper (WebViewGold) and open a pull request. 1) Every generated-file route must respond with Content-Disposition: attachment; filename="name.ext" keeping the real extension. 2) Replace target="_blank" and window.open on download links with plain same-tab anchors. 3) Add saveImage(url) to lib/native.ts: when navigator.userAgent contains "WebViewGold", set window.location.href to 'savethisimage://?url=' + encodeURIComponent(url), otherwise start a normal download. 4) Give file inputs accept and capture attributes (accept="image/*" capture="environment" for photos) plus a size check and progress state. 5) Add tests for the headers. Describe in the PR what I must configure natively.
Great way of converting your web app to a native app! Fast turn-around, and a great way to get your apps into the app stores without the need to develop a full native app!
Set it up for a ChatGPT & Codex app
Mostly checking that your web app plays along.
Serve downloads with the right headers
PDFs and files should be served with a correct Content-Type and, where you want a download instead of inline display, Content-Disposition. Signed URLs from Your own API or serverless functions storage work.
Use standard file inputs
No custom upload widgets that depend on drag and drop only. A standard
<input type="file">(multiple allowed) is what the native picker hooks into.Write the permission strings
Camera and photo library usage descriptions in the WebViewGold Xcode project (and the Cloud Builder fields) must say what the app does with photos ("to upload a profile picture").
Handle large files
Compress images client-side before uploading when possible (most ChatGPT & Codex stacks have a helper for it) and show progress; mobile connections are slower than your desk.
Test both platforms
Upload from the camera and from the gallery, download a PDF and an image, on iOS and Android. Each uses a slightly different system dialog.
Frequently asked questions
Why do downloads do nothing in a plain WebView?
WebViews render pages; they have no download manager unless the native app adds one. WebViewGold adds the downloader so links behave like users expect.
Can users pick multiple photos?
Yes, with a multiple attribute on the file input the native picker allows multi-select on both platforms.
Do I need to declare camera access in the stores?
Only the purpose strings and, if you store photos, the matching App Privacy / Data safety answers. No special review process.
Three ways to get your app into the stores
Same result, different amount of work on your side. All three come with the approval guarantee and 24/7 human support.
Do it yourself
$109 per platform, one-time
The WebViewGold license: a finished Xcode or Android Studio project. Paste your URL, set name and icon, switch on features, build and submit. Free updates forever.
See plans on the main pageCloud Builder
$349 per license, one-time add-on
No Mac, no Xcode, no Android Studio: configure in the browser, we build both apps in the cloud and hand them to App Store Connect and the Play Console.
How the Cloud Builder works Try the free demoFull Service
$698 per platform $798
Send us your URL and icon. Our team configures, builds and delivers your app within 72 hours, white-label, with source projects. Both platforms for $1,158.
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