How to use
Add Undertale / Deltarune Slack emoji to your workspace.
Step 1
Click any undertale / deltarune emoji above and choose Download PNG.
Step 2
In Slack, open the reaction picker and choose Add custom emoji.
Step 3
Upload the PNG, name it (for example
:sans_undertale:), and save.
Or skip the download — install the EmojiBox Chrome extension and push Undertale / Deltarune emojis to Slack in one click.
FAQ
About Undertale / Deltarune Slack emoji
- How do I add these Undertale / Deltarune emojis to Slack?
- Click any emoji card above and choose "Download PNG". In Slack, open the reaction picker, choose "Add custom emoji", upload the file, name it (for example :undertale / deltarune:) and save. To skip the download/upload loop, install the EmojiBox Chrome extension and push undertale / deltarune emojis straight to Slack in one click.
- Are these Undertale / Deltarune Slack emojis free?
- Yes. Every undertale / deltarune emoji on EmojiBox is free to download as a PNG and free to upload to your Slack workspace, with no account required and no paywall.
- Are these official Undertale / Deltarune emojis?
- No. EmojiBox is a community directory. Undertale / Deltarune emojis here are fan and community-uploaded variants, not officially endorsed by the rights holder. Use them as you would any fan art.
- How many Undertale / Deltarune Slack emojis are on EmojiBox?
- 10 undertale / deltarune emojis are in this pack today. New emojis are added as the community uploads them — bookmark this page to catch updates.
- Can I use Undertale / Deltarune Slack emojis in Discord, Teams, or Mattermost?
- Yes. The PNGs are sized for Slack's 128×128 / 64KB limits, which sit inside the upload caps for Discord, Microsoft Teams, Mattermost, Zulip and Rocket.Chat. Upload through each platform's custom-emoji UI.