# \#webxdc **URL:** https://forum.delta.chat/tag/webxdc/12.md [Latest](https://forum.delta.chat/latest.md) · [Categories](https://forum.delta.chat/categories.md) · [Tags](https://forum.delta.chat/tags.md) --- ## [Export large files to device](https://forum.delta.chat/t/export-large-files-to-device/5942)
**Author:** [@atolisglli](https://forum.delta.chat/u/atolisglli)\ **Replies:** 2\ **Last updated:** [October 19, 2026, 7:34am UTC](https://forum.delta.chat/t/export-large-files-to-device/5942 "2026-10-19T07:34:13Z")
My goal is to gain better understanding of the codebase, to learn to create a PR for resolving a bug in DeltaChat Android and Desktop. I wrote a webxdc app. This app locally generates large binary files, often more tha… --- ## [WebXDC: How Big is Too Big \[20MB\]](https://forum.delta.chat/t/webxdc-how-big-is-too-big-20mb/5545)
**Author:** [@Axe](https://forum.delta.chat/u/Axe)\ **Replies:** 6\ **Last updated:** [September 7, 2026, 2:43pm UTC](https://forum.delta.chat/t/webxdc-how-big-is-too-big-20mb/5545 "2026-09-07T14:43:35Z")
What do you all think would be the largest useable size of a WebXDC app? I’m thinking about max size for sharing with Delta Chat users? The current app I’m working on is approaching 20MB. --- ## [Generic reverse proxy \[webxdc interface for bot gateway to isolated web service\]](https://forum.delta.chat/t/generic-reverse-proxy-webxdc-interface-for-bot-gateway-to-isolated-web-service/5748)
**Author:** [@koala](https://forum.delta.chat/u/koala)\ **Replies:** 5\ **Last updated:** [September 7, 2026, 8:21am UTC](https://forum.delta.chat/t/generic-reverse-proxy-webxdc-interface-for-bot-gateway-to-isolated-web-service/5748 "2026-09-07T08:21:13Z")
I’d like to provide someone a way to run a service on a computer of theirs that they could control from anywhere. A quick option I thought to not have to deal with NAT is to make the service run a Delta Chat bot. Then t… --- ## [Support multiple apps from single repo in xdcget \[feature request\]](https://forum.delta.chat/t/support-multiple-apps-from-single-repo-in-xdcget-feature-request/5730)
**Author:** [@alr86](https://forum.delta.chat/u/alr86)\ **Replies:** 0\ **Last updated:** [September 1, 2026, 9:54am UTC](https://forum.delta.chat/t/support-multiple-apps-from-single-repo-in-xdcget-feature-request/5730 "2026-09-01T09:54:03Z")
Reposted from here I have some apps that release multiple .xdc files for the same app in different languages. please add support of sharing multiple .xdc files from single repo to xdc app store. GitHub - alr-rashidi/de… --- ## [Rename "Start" button to "Open" for webxdc apps](https://forum.delta.chat/t/rename-start-button-to-open-for-webxdc-apps/5724)
**Author:** [@maphouse](https://forum.delta.chat/u/maphouse)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 3:53am UTC](https://forum.delta.chat/t/rename-start-button-to-open-for-webxdc-apps/5724 "2026-09-01T03:53:23Z")
The button label for opening a webxdc app in chat currently says “Start…” (localized as start\_app). This is misleading for apps that already have shared state from other participants — tapping “Start” on an in-progress … --- ## [Android Pixel Phones and WebXDC Loading Issues](https://forum.delta.chat/t/android-pixel-phones-and-webxdc-loading-issues/5719)
**Author:** [@Axe](https://forum.delta.chat/u/Axe)\ **Replies:** 2\ **Last updated:** [August 30, 2026, 9:32pm UTC](https://forum.delta.chat/t/android-pixel-phones-and-webxdc-loading-issues/5719 "2026-08-30T21:32:17Z")
On all my Pixel phones, when I switch from from XDC app to another, there is an excessive delay with a very slow loading ‘load bar’ at the top. This does not happen on my other Android phones that are not Pixels. Why? … --- ## [Codeberg No Longer Accepting Apps Coded With Assistance From LLM](https://forum.delta.chat/t/codeberg-no-longer-accepting-apps-coded-with-assistance-from-llm/5575)
**Author:** [@Axe](https://forum.delta.chat/u/Axe)\ **Replies:** 6\ **Last updated:** [August 29, 2026, 8:41am UTC](https://forum.delta.chat/t/codeberg-no-longer-accepting-apps-coded-with-assistance-from-llm/5575 "2026-08-29T08:41:56Z")
Codeberg announcement: https://blog.codeberg.org/protecting-our-floss-commons-from-llms.html I will be removing my apps from Codeberg because they were heavily developed, modified, and reviewed with LLM assistance. We… --- ## [Add option to exclude Apps from "Delete old messages from devices"](https://forum.delta.chat/t/add-option-to-exclude-apps-from-delete-old-messages-from-devices/5683)
**Author:** [@lucarne](https://forum.delta.chat/u/lucarne)\ **Replies:** 6\ **Last updated:** [August 26, 2026, 9:54pm UTC](https://forum.delta.chat/t/add-option-to-exclude-apps-from-delete-old-messages-from-devices/5683 "2026-08-26T21:54:58Z")
Hello (sorry if bad english), In DeltaChat, there is an option to delete old messages from device after 1h, 1 day… 1 year or never. This setting deletes every types of messages, including media and APPS. Is it possibl… --- ## [Request for packaging a WebXDC developer tutorial and reference materials](https://forum.delta.chat/t/request-for-packaging-a-webxdc-developer-tutorial-and-reference-materials/4851)
**Author:** [@ian](https://forum.delta.chat/u/ian)\ **Replies:** 14\ **Last updated:** [August 18, 2026, 9:32pm UTC](https://forum.delta.chat/t/request-for-packaging-a-webxdc-developer-tutorial-and-reference-materials/4851 "2026-08-18T21:32:41Z")
Goals Being exhaustive is not a goal, so it is acceptable to skip parts which are more advanced or not needed for contributing to and creating simple webxdc apps. Maintenance To ensure long term maintainability, it ough… --- ## [WebXDC dynamic preview & click listeners (inline apps)](https://forum.delta.chat/t/webxdc-dynamic-preview-click-listeners-inline-apps/5647)
**Author:** [@Joshua](https://forum.delta.chat/u/Joshua)\ **Replies:** 4\ **Last updated:** [August 14, 2026, 1:27pm UTC](https://forum.delta.chat/t/webxdc-dynamic-preview-click-listeners-inline-apps/5647 "2026-08-14T13:27:23Z")
Goal Allow WebXTC apps to work in a very limited way in inline mode, receive click events and react to them. This enables features like polls directly in the chat, custom widgets and more Proposed additions This proposa… --- ## ['Inline' realtime polls](https://forum.delta.chat/t/inline-realtime-polls/3882)
**Author:** [@tmattei](https://forum.delta.chat/u/tmattei)\ **Replies:** 10\ **Last updated:** [August 13, 2026, 6:10pm UTC](https://forum.delta.chat/t/inline-realtime-polls/3882 "2026-08-13T18:10:09Z")
I’d like to have polls implemented in-chat, without the need of using an external app. This would allow users to vote and follow the changes of other people’s votes more quickly. Polls are very widely used in work chat… --- ## [Request for annotating webxdc with categories and labels](https://forum.delta.chat/t/request-for-annotating-webxdc-with-categories-and-labels/5303)
**Author:** [@ian](https://forum.delta.chat/u/ian)\ **Replies:** 0\ **Last updated:** [May 25, 2026, 3:05pm UTC](https://forum.delta.chat/t/request-for-annotating-webxdc-with-categories-and-labels/5303 "2026-05-25T15:05:40Z")
We could add further structured metadata items to the manifest of each app. It could be either stored in the original zip, or separately by the store. The store web app frontend could provide filters for these metadata. … --- ## [Optional Limited Internet Access for WebXDC Apps (Domain Whitelist)](https://forum.delta.chat/t/optional-limited-internet-access-for-webxdc-apps-domain-whitelist/5556)
**Author:** [@alr86](https://forum.delta.chat/u/alr86)\ **Replies:** 11\ **Last updated:** [July 22, 2026, 5:46pm UTC](https://forum.delta.chat/t/optional-limited-internet-access-for-webxdc-apps-domain-whitelist/5556 "2026-07-22T17:46:06Z")
Many useful WebXDC apps (especially music, media, weather, news, etc.) would benefit from the ability to load resources from specific trusted domains while maintaining WebXDC’s strong security guarantees. My Idea: Ad… --- ## [New Deltachat Video - Apps in Chats](https://forum.delta.chat/t/new-deltachat-video-apps-in-chats/5447)
**Author:** [@lgil310y3](https://forum.delta.chat/u/lgil310y3)\ **Replies:** 3\ **Last updated:** [July 20, 2026, 1:27pm UTC](https://forum.delta.chat/t/new-deltachat-video-apps-in-chats/5447 "2026-07-20T13:27:37Z")
Hi everyone! I’ve just published a new YouTube video about Apps in DeltaChat – a unique and innovative feature that sets Delta Chat apart from other messengers. Enjoy watching, and I’d love to hear your feedback! … --- ## [Vector: New messaging app with webxdc support](https://forum.delta.chat/t/vector-new-messaging-app-with-webxdc-support/4833)
**Author:** [@Low](https://forum.delta.chat/u/Low)\ **Replies:** 9\ **Last updated:** [July 12, 2026, 5:54pm UTC](https://forum.delta.chat/t/vector-new-messaging-app-with-webxdc-support/4833 "2026-07-12T17:54:17Z")
It doesn’t use chatmail but sharing bc of the webxdc support! It uses the “marmot” protocol that is built on Nostr --- ## [The Webxdc AppStore flashes blinding white for 1 second](https://forum.delta.chat/t/the-webxdc-appstore-flashes-blinding-white-for-1-second/5307)
**Author:** [@Low](https://forum.delta.chat/u/Low)\ **Replies:** 12\ **Last updated:** [June 13, 2026, 4:26pm UTC](https://forum.delta.chat/t/the-webxdc-appstore-flashes-blinding-white-for-1-second/5307 "2026-06-13T16:26:48Z")
When in a dark environment and you’re on dark mode, this is really jarring, it makes users angry, and it feels very cheap / brittle. If the device is on dark mode, if it must “flash” at all, have it be a black screen be… --- ## [Allow apps to export large files to local chat only](https://forum.delta.chat/t/allow-apps-to-export-large-files-to-local-chat-only/5380)
**Author:** [@DryIce1348](https://forum.delta.chat/u/DryIce1348)\ **Replies:** 4\ **Last updated:** [June 7, 2026, 8:15pm UTC](https://forum.delta.chat/t/allow-apps-to-export-large-files-to-local-chat-only/5380 "2026-06-07T20:15:29Z")
This is related to both Webxdc and Delta Chat, but this seems like the better place to put it. It would be very powerful if Webxdc apps could export files and media of any size directly into the chat only for the local … --- ## [Include mini apps to open links \[Protocol handlers, exchanging data between webxdc\]](https://forum.delta.chat/t/include-mini-apps-to-open-links-protocol-handlers-exchanging-data-between-webxdc/5290)
**Author:** [@Iago](https://forum.delta.chat/u/Iago)\ **Replies:** 2\ **Last updated:** [May 21, 2026, 9:53am UTC](https://forum.delta.chat/t/include-mini-apps-to-open-links-protocol-handlers-exchanging-data-between-webxdc/5290 "2026-05-21T09:53:53Z")
My case is the following. I have an .ics file in a delta chat conversation (which further, was developed with mini app meet up). When I try to open it, if I have not chosen a default app for opening ics files it offers t… --- ## [Block webxdc Apps for kids](https://forum.delta.chat/t/block-webxdc-apps-for-kids/5279)
**Author:** [@tapete](https://forum.delta.chat/u/tapete)\ **Replies:** 7\ **Last updated:** [May 19, 2026, 3:10pm UTC](https://forum.delta.chat/t/block-webxdc-apps-for-kids/5279 "2026-05-19T15:10:18Z")
When my kids started using delta chat, they were writing with friends which was really cool. After they found out how to play games with delta chat, they stopped writing and started gaming. For me it was quite sad to see… --- ## [Wanted: bot which turns a webpage into an xdc](https://forum.delta.chat/t/wanted-bot-which-turns-a-webpage-into-an-xdc/5105)
**Author:** [@thobux](https://forum.delta.chat/u/thobux)\ **Replies:** 16\ **Last updated:** [April 29, 2026, 6:08pm UTC](https://forum.delta.chat/t/wanted-bot-which-turns-a-webpage-into-an-xdc/5105 "2026-04-29T18:08:40Z")
I would like to be able to turn almost any webpage into an xdc, like archiving it. The bot will be presented with a URL, fetches the content, creates an icon.png/jpg, names it properly and downloads the xdc for further … --- ## [Show document title on hover of docked webxdc on top chat bar](https://forum.delta.chat/t/show-document-title-on-hover-of-docked-webxdc-on-top-chat-bar/4559)
**Author:** [@ian](https://forum.delta.chat/u/ian)\ **Replies:** 2\ **Last updated:** [April 20, 2026, 1:36pm UTC](https://forum.delta.chat/t/show-document-title-on-hover-of-docked-webxdc-on-top-chat-bar/4559 "2026-04-20T13:36:43Z")
It is already displayed in Apps & Media, but it would help differentiate between multiple instances of the same app in some cases with less clicks. --- ## [Request to package offline user documentation](https://forum.delta.chat/t/request-to-package-offline-user-documentation/4886)
**Author:** [@ian](https://forum.delta.chat/u/ian)\ **Replies:** 0\ **Last updated:** [March 12, 2026, 8:03am UTC](https://forum.delta.chat/t/request-to-package-offline-user-documentation/4886 "2026-03-12T08:03:42Z")
Goals The FAQ has already been bundled with the DC client under the Settings → Help menu. It would be beneficial to include further docs to help a user troubleshoot more issues. It could be either bundled in the DC clie… --- ## [Create your own application repository \[blocked in country, clone it and specify its address\]](https://forum.delta.chat/t/create-your-own-application-repository-blocked-in-country-clone-it-and-specify-its-address/5062)
**Author:** [@bestman](https://forum.delta.chat/u/bestman)\ **Replies:** 1\ **Last updated:** [April 14, 2026, 9:19pm UTC](https://forum.delta.chat/t/create-your-own-application-repository-blocked-in-country-clone-it-and-specify-its-address/5062 "2026-04-14T21:19:06Z")
Since the https://webxdc.org/ application repository is blocked in my country, is it possible to somehow clone it, move it to my storage, and specify its address in the delta chat client? --- ## [Device Message says: Failed to receive a message: Failed to load just created webxdc instance](https://forum.delta.chat/t/device-message-says-failed-to-receive-a-message-failed-to-load-just-created-webxdc-instance/5046)
**Author:** [@xonx](https://forum.delta.chat/u/xonx)\ **Replies:** 1\ **Last updated:** [April 13, 2026, 11:24am UTC](https://forum.delta.chat/t/device-message-says-failed-to-receive-a-message-failed-to-load-just-created-webxdc-instance/5046 "2026-04-13T11:24:37Z")
An error message suddenly appeared in device messages: :cross\_mark: Failed to receive a message: Failed to load just created webxdc instance: Message Msg#17977 does not exist. Core version v2.48.0. Please report this b… --- ## [Resend webxdc sent by another user \[to fix group that became plaintext on 2.46\]](https://forum.delta.chat/t/resend-webxdc-sent-by-another-user-to-fix-group-that-became-plaintext-on-2-46/5026)
**Author:** [@anedroid](https://forum.delta.chat/u/anedroid)\ **Replies:** 3\ **Last updated:** [April 10, 2026, 11:44am UTC](https://forum.delta.chat/t/resend-webxdc-sent-by-another-user-to-fix-group-that-became-plaintext-on-2-46/5026 "2026-04-10T11:44:48Z")
We have a group on Delta Chat with webxdc app and some data in it (can’t be exported). When I updated from 1.x to 2.46.0, that group became plaintext, even though it was end-to-end encrypted & chatmail-only. Also, I saw… --- ## [Request for API to send update in private to channel owner](https://forum.delta.chat/t/request-for-api-to-send-update-in-private-to-channel-owner/4998)
**Author:** [@ian](https://forum.delta.chat/u/ian)\ **Replies:** 2\ **Last updated:** [April 2, 2026, 10:36pm UTC](https://forum.delta.chat/t/request-for-api-to-send-update-in-private-to-channel-owner/4998 "2026-04-02T22:36:50Z")
The owner of a broadcast channel sends in a webxdc app. The webxdc as ran by the owner (preferred) or a separate bot would send in xdc updates to the broadcast channel for members to consume similarly to how they can al… --- ## [Label for apps which use realtime chat](https://forum.delta.chat/t/label-for-apps-which-use-realtime-chat/3484)
**Author:** [@peppa](https://forum.delta.chat/u/peppa)\ **Replies:** 5\ **Last updated:** [March 23, 2026, 11:17am UTC](https://forum.delta.chat/t/label-for-apps-which-use-realtime-chat/3484 "2026-03-23T11:17:19Z")
I suggest adding a label to apps in the xstore which use P2P realtime chat so that users who want to avoid this or who have realtime chat disabled can easily identify which apps will or won’t work for them and not waste … --- ## [Forward filled webxdc app \[migration of state updates between groups\]](https://forum.delta.chat/t/forward-filled-webxdc-app-migration-of-state-updates-between-groups/4276)
**Author:** [@mikelgs](https://forum.delta.chat/u/mikelgs)\ **Replies:** 8\ **Last updated:** [March 12, 2026, 11:39am UTC](https://forum.delta.chat/t/forward-filled-webxdc-app-migration-of-state-updates-between-groups/4276 "2026-03-12T11:39:17Z")
When I spend some time to fill an app (for example creating a shopping list on Traero) I want to resend that list to a new group. However, it is empty when I send it. → Expected behavior I resend or forward an app tha… --- ## [Add slideshow tool](https://forum.delta.chat/t/add-slideshow-tool/4769)
**Author:** [@Minim](https://forum.delta.chat/u/Minim)\ **Replies:** 4\ **Last updated:** [February 18, 2026, 2:53pm UTC](https://forum.delta.chat/t/add-slideshow-tool/4769 "2026-02-18T14:53:58Z")
Ingredients There are excellent W3C-endorsed HTML slideshow tools which are frankly a lot more reliable than PowerPoint. Most mobiles can screencast. And there is basically a webbrowser in Deltachat clients already. Des… --- ## [How make open a link from within a webxdc app?](https://forum.delta.chat/t/how-make-open-a-link-from-within-a-webxdc-app/4690)
**Author:** [@sorenpeter](https://forum.delta.chat/u/sorenpeter)\ **Replies:** 1\ **Last updated:** [February 6, 2026, 2:54pm UTC](https://forum.delta.chat/t/how-make-open-a-link-from-within-a-webxdc-app/4690 "2026-02-06T14:54:37Z")
Hi, I want to make a webxdc app where user can share links. More precisely to have a list of invite links to other delta chat rooms. I tried the following using the hello app as the base but the links are working… \