diff --git a/internal/media/manager.go b/internal/media/manager.go
index 5f496a71d..61f4e73dd 100644
--- a/internal/media/manager.go
+++ b/internal/media/manager.go
@@ -45,6 +45,7 @@ var SupportedMIMETypes = []string{
 var SupportedEmojiMIMETypes = []string{
 	mimeImageGif,
 	mimeImagePng,
+	mimeImageWebp,
 }
 
 type Manager struct {
diff --git a/internal/media/manager_test.go b/internal/media/manager_test.go
index f90c182fe..bb8afdfd2 100644
--- a/internal/media/manager_test.go
+++ b/internal/media/manager_test.go
@@ -303,6 +303,67 @@ func (suite *ManagerTestSuite) TestEmojiProcessBlockingNoFileSizeGiven() {
 	suite.Equal(processedStaticBytesExpected, processedStaticBytes)
 }
 
+func (suite *ManagerTestSuite) TestEmojiWebpProcess() {
+	ctx := context.Background()
+
+	data := func(_ context.Context) (io.ReadCloser, int64, error) {
+		// load bytes from a test image
+		b, err := os.ReadFile("./test/nb-flag-original.webp")
+		if err != nil {
+			panic(err)
+		}
+		return io.NopCloser(bytes.NewBuffer(b)), int64(len(b)), nil
+	}
+
+	emojiID := "01GDQ9G782X42BAMFASKP64343"
+	emojiURI := "http://localhost:8080/emoji/01GDQ9G782X42BAMFASKP64343"
+
+	processingEmoji, err := suite.manager.ProcessEmoji(ctx, data, "nb-flag", emojiID, emojiURI, nil, false)
+	suite.NoError(err)
+
+	// do a blocking call to fetch the emoji
+	emoji, err := processingEmoji.LoadEmoji(ctx)
+	suite.NoError(err)
+	suite.NotNil(emoji)
+
+	// make sure it's got the stuff set on it that we expect
+	suite.Equal(emojiID, emoji.ID)
+
+	// file meta should be correctly derived from the image
+	suite.Equal("image/webp", emoji.ImageContentType)
+	suite.Equal("image/png", emoji.ImageStaticContentType)
+	suite.Equal(294, emoji.ImageFileSize)
+
+	// now make sure the emoji is in the database
+	dbEmoji, err := suite.db.GetEmojiByID(ctx, emojiID)
+	suite.NoError(err)
+	suite.NotNil(dbEmoji)
+
+	// make sure the processed emoji file is in storage
+	processedFullBytes, err := suite.storage.Get(ctx, emoji.ImagePath)
+	suite.NoError(err)
+	suite.NotEmpty(processedFullBytes)
+
+	// load the processed bytes from our test folder, to compare
+	processedFullBytesExpected, err := os.ReadFile("./test/nb-flag-original.webp")
+	suite.NoError(err)
+	suite.NotEmpty(processedFullBytesExpected)
+
+	// the bytes in storage should be what we expected
+	suite.Equal(processedFullBytesExpected, processedFullBytes)
+
+	// now do the same for the thumbnail and make sure it's what we expected
+	processedStaticBytes, err := suite.storage.Get(ctx, emoji.ImageStaticPath)
+	suite.NoError(err)
+	suite.NotEmpty(processedStaticBytes)
+
+	processedStaticBytesExpected, err := os.ReadFile("./test/nb-flag-static.png")
+	suite.NoError(err)
+	suite.NotEmpty(processedStaticBytesExpected)
+
+	suite.Equal(processedStaticBytesExpected, processedStaticBytes)
+}
+
 func (suite *ManagerTestSuite) TestSimpleJpegProcessBlocking() {
 	ctx := context.Background()
 
diff --git a/internal/media/processingemoji.go b/internal/media/processingemoji.go
index 56113b27b..9287f14ce 100644
--- a/internal/media/processingemoji.go
+++ b/internal/media/processingemoji.go
@@ -21,6 +21,7 @@ import (
 	"bytes"
 	"context"
 	"io"
+	"slices"
 
 	"codeberg.org/gruf/go-bytesize"
 	"codeberg.org/gruf/go-errors/v2"
@@ -57,7 +58,6 @@ func (p *ProcessingEmoji) EmojiID() string {
 func (p *ProcessingEmoji) LoadEmoji(ctx context.Context) (*gtsmodel.Emoji, error) {
 	// Attempt to load synchronously.
 	emoji, done, err := p.load(ctx)
-
 	if err == nil {
 		// No issue, return media.
 		return emoji, nil
@@ -209,12 +209,8 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
 		return gtserror.Newf("error parsing file type: %w", err)
 	}
 
-	switch info.Extension {
-	// only supported emoji types
-	case "gif", "png":
-
-	// unhandled
-	default:
+	// Ensure supported emoji img type.
+	if !slices.Contains(SupportedEmojiMIMETypes, info.MIME.Value) {
 		return gtserror.Newf("unsupported emoji filetype: %s", info.Extension)
 	}
 
diff --git a/internal/media/test/nb-flag-original.webp b/internal/media/test/nb-flag-original.webp
new file mode 100644
index 000000000..a03d49ce3
Binary files /dev/null and b/internal/media/test/nb-flag-original.webp differ
diff --git a/internal/media/test/nb-flag-static.png b/internal/media/test/nb-flag-static.png
new file mode 100644
index 000000000..399eae5e5
Binary files /dev/null and b/internal/media/test/nb-flag-static.png differ
diff --git a/web/source/settings/admin/emoji/local/new-emoji.js b/web/source/settings/admin/emoji/local/new-emoji.js
index ecb0465cb..6c0d0f2f4 100644
--- a/web/source/settings/admin/emoji/local/new-emoji.js
+++ b/web/source/settings/admin/emoji/local/new-emoji.js
@@ -93,7 +93,7 @@ module.exports = function NewEmojiForm() {
 			<form onSubmit={submitForm} className="form-flex">
 				<FileInput
 					field={image}
-					accept="image/png,image/gif"
+					accept="image/png,image/gif,image/webp"
 				/>
 
 				<TextInput