feat(web): Add org removal functionality to admin user details page

options/locale/locale_en-US.json

@@ -3055,6 +3055,13 @@
   "admin.users.purge_help": "Forcibly delete user and any repositories, organizations, and packages owned by the user. All comments will be deleted too.",
   "admin.users.still_own_packages": "This user still owns one or more packages. Delete these packages first.",
   "admin.users.deletion_success": "The user account has been deleted.",
+  "admin.users.org_removed": "User has been removed from the organization.",
+  "admin.users.all_orgs_removed": "User has been removed from all organizations.",
+  "admin.users.no_orgs_to_remove": "User is not a member of any organizations.",
+  "admin.users.no_orgs_removed": "Failed to remove user from organizations (may be last owner).",
+  "admin.users.some_orgs_removed": "User removed from %d of %d organizations (some may require another owner first).",
+  "admin.users.remove_all_orgs_title": "Remove from All Organizations?",
+  "admin.users.remove_all_orgs_desc": "Are you sure you want to remove %s from all %d organizations? This action cannot be undone.",
   "admin.users.reset_2fa": "Reset 2FA",
   "admin.users.list_status_filter.menu_text": "Filter",
   "admin.users.list_status_filter.reset": "Reset",

routers/web/admin/users.go

@@ -29,6 +29,7 @@ import (
 	"gitea.dev/services/context"
 	"gitea.dev/services/forms"
 	"gitea.dev/services/mailer"
+	org_service "gitea.dev/services/org"
 	user_service "gitea.dev/services/user"
 )
 
@@ -521,6 +522,82 @@ func DeleteUser(ctx *context.Context) {
 	ctx.Redirect(setting.AppSubURL + "/-/admin/users")
 }
 
+// RemoveUserFromOrg removes a user from an organization
+func RemoveUserFromOrg(ctx *context.Context) {
+	u := prepareUserInfo(ctx)
+	if ctx.Written() {
+		return
+	}
+
+	orgID := ctx.PathParamInt64("orgid")
+	org, err := org_model.GetOrgByID(ctx, orgID)
+	if err != nil {
+		ctx.ServerError("GetOrgByID", err)
+		return
+	}
+
+	if err := org_service.RemoveOrgUser(ctx, org, u); err != nil {
+		if org_model.IsErrLastOrgOwner(err) {
+			ctx.Flash.Error(ctx.Tr("form.last_org_owner"))
+			ctx.Redirect(setting.AppSubURL + "/-/admin/users/" + url.PathEscape(ctx.PathParam("userid")))
+			return
+		}
+
+		ctx.ServerError("RemoveOrgUser", err)
+		return
+	}
+
+	ctx.Flash.Success(ctx.Tr("admin.users.org_removed"))
+	ctx.Redirect(setting.AppSubURL + "/-/admin/users/" + url.PathEscape(ctx.PathParam("userid")))
+}
+
+// RemoveUserFromAllOrgs removes a user from all organizations
+func RemoveUserFromAllOrgs(ctx *context.Context) {
+	u := prepareUserInfo(ctx)
+	if ctx.Written() {
+		return
+	}
+
+	orgs, err := db.Find[org_model.Organization](ctx, org_model.FindOrgOptions{
+		ListOptions:       db.ListOptionsAll,
+		UserID:            u.ID,
+		IncludeVisibility: structs.VisibleTypePrivate,
+	})
+	if err != nil {
+		ctx.ServerError("FindOrgs", err)
+		return
+	}
+
+	if len(orgs) == 0 {
+		ctx.Flash.Info(ctx.Tr("admin.users.no_orgs_to_remove"))
+		ctx.Redirect(setting.AppSubURL + "/-/admin/users/" + url.PathEscape(ctx.PathParam("userid")))
+		return
+	}
+
+	removedCount := 0
+	for i := range orgs {
+		if err := org_service.RemoveOrgUser(ctx, orgs[i], u); err != nil {
+			if org_model.IsErrLastOrgOwner(err) {
+				log.Warn("Cannot remove user %s from org %s: last owner", u.Name, orgs[i].Name)
+				continue
+			}
+			log.Error("Failed to remove user %s from org %s: %v", u.Name, orgs[i].Name, err)
+			continue
+		}
+		removedCount++
+	}
+
+	if removedCount == 0 {
+		ctx.Flash.Error(ctx.Tr("admin.users.no_orgs_removed"))
+	} else if removedCount < len(orgs) {
+		ctx.Flash.Warning(ctx.Tr("admin.users.some_orgs_removed", removedCount, len(orgs)))
+	} else {
+		ctx.Flash.Success(ctx.Tr("admin.users.all_orgs_removed"))
+	}
+
+	ctx.Redirect(setting.AppSubURL + "/-/admin/users/" + url.PathEscape(ctx.PathParam("userid")))
+}
+
 // AvatarPost response for change user's avatar request
 func AvatarPost(ctx *context.Context) {
 	u := prepareUserInfo(ctx)

routers/web/web.go

@@ -788,6 +788,8 @@ func registerWebRoutes(m *web.Router, webAuth *AuthMiddleware) {
 			m.Post("/{userid}/delete", admin.DeleteUser)
 			m.Post("/{userid}/avatar", web.Bind(forms.AvatarForm{}), admin.AvatarPost)
 			m.Post("/{userid}/avatar/delete", admin.DeleteAvatar)
+			m.Post("/{userid}/orgs/{orgid}/remove", admin.RemoveUserFromOrg)
+			m.Post("/{userid}/orgs/remove-all", admin.RemoveUserFromAllOrgs)
 		})
 
 		m.Group("/badges", func() {
@@ -863,8 +865,8 @@ func registerWebRoutes(m *web.Router, webAuth *AuthMiddleware) {
 		m.Group("/actions", func() {
 			m.Get("", misc.LocationRedirect("./actions/runners"))
 			addSettingsRunnersRoutes()
-			m.Post("/runners/bulk", shared_actions.RunnerBulkActionPost)
 			addSettingsVariablesRoutes()
+			m.Post("/runners/bulk", shared_actions.RunnerBulkActionPost)
 		})
 	}, adminReq, ctxDataSet("EnableOAuth2", setting.OAuth2.Enabled, "EnablePackages", setting.Packages.Enabled))
 	// ***** END: Admin *****

templates/admin/user/view.tmpl

@@ -30,10 +30,33 @@
 	</div>
 	<h4 class="ui top attached header">
 		{{ctx.Locale.Tr "settings.organization"}} ({{ctx.Locale.Tr "admin.total" .OrgsTotal}})
+		{{if gt .OrgsTotal 0}}
+			<div class="ui right">
+				<button class="ui red tiny button show-modal" data-modal="#remove-all-orgs-modal">{{ctx.Locale.Tr "remove_all"}}</button>
+			</div>
+		{{end}}
 	</h4>
 	<div class="ui attached segment">
-		{{template "explore/user_list" .}}
+		{{template "admin/user/view_orgs" .}}
+	</div>
+</div>
+
+{{if gt .OrgsTotal 0}}
+<div class="ui small modal" id="remove-all-orgs-modal">
+	<div class="header">
+		{{ctx.Locale.Tr "admin.users.remove_all_orgs_title"}}
+	</div>
+	<div class="content">
+		<p>{{ctx.Locale.Tr "admin.users.remove_all_orgs_desc" .User.Name .OrgsTotal}}</p>
+	</div>
+	<div class="actions">
+		<div class="ui cancel button">{{ctx.Locale.Tr "settings.cancel"}}</div>
+		<form method="post" action="{{.Link}}/orgs/remove-all" style="display: inline;">
+			{{.CsrfTokenHtml}}
+			<button class="ui red button" type="submit">{{ctx.Locale.Tr "remove_all"}}</button>
+		</form>
 	</div>
 </div>
+{{end}}
 
 {{template "admin/layout_footer" .}}

templates/admin/user/view_orgs.tmpl

@@ -0,0 +1,33 @@
+<div class="flex-divided-list items-with-main">
+	{{range .Users}}
+		<div class="item tw-items-center">
+			<div class="item-leading">
+				{{ctx.AvatarUtils.Avatar . 48}}
+			</div>
+			<div class="item-main">
+				<div class="item-title">
+					{{template "shared/user/name" .}}
+					{{if .Visibility.IsPrivate}}
+						<span class="ui basic tiny label">{{ctx.Locale.Tr "repo.desc.private"}}</span>
+					{{end}}
+				</div>
+				<div class="item-body">
+					{{if .Location}}
+						<span class="flex-text-inline">{{svg "octicon-location"}}{{.Location}}</span>
+					{{end}}
+					<span class="flex-text-inline">{{svg "octicon-calendar"}}{{ctx.Locale.Tr "user.joined_on" (DateUtils.AbsoluteShort .CreatedUnix)}}</span>
+				</div>
+			</div>
+			<div class="item-trailing">
+				<form method="post" action="{{$.Link}}/orgs/{{.ID}}/remove">
+					{{$.CsrfTokenHtml}}
+					<button class="ui red tiny button" type="submit">{{ctx.Locale.Tr "remove"}}</button>
+				</form>
+			</div>
+		</div>
+	{{else}}
+		<div class="item">
+			{{ctx.Locale.Tr "search.no_results"}}
+		</div>
+	{{end}}
+</div>

tests/integration/admin_user_org_test.go

@@ -0,0 +1,65 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+
+	"gitea.dev/models/organization"
+	"gitea.dev/models/unittest"
+	user_model "gitea.dev/models/user"
+	"gitea.dev/tests"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAdminRemoveUserFromOrg(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	// Admin user
+	session := loginUser(t, "user1")
+
+	// User to remove from org
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+
+	// Verify user is in org
+	isMember, err := organization.IsOrganizationMember(t.Context(), org.ID, user.ID)
+	assert.NoError(t, err)
+	assert.True(t, isMember)
+
+	// Remove user from org
+	req := NewRequest(t, "POST", "/-/admin/users/4/orgs/3/remove")
+	session.MakeRequest(t, req, http.StatusSeeOther)
+
+	// Verify user is no longer in org
+	isMember, err = organization.IsOrganizationMember(t.Context(), org.ID, user.ID)
+	assert.NoError(t, err)
+	assert.False(t, isMember)
+}
+
+func TestAdminRemoveUserFromAllOrgs(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	// Admin user
+	session := loginUser(t, "user1")
+
+	// User to remove from all orgs (user4 is not a last owner)
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+
+	// Get count of orgs user is in before removal
+	orgCount, err := organization.GetOrganizationCount(t.Context(), user)
+	assert.NoError(t, err)
+	assert.Positive(t, orgCount, "User should be in at least one org")
+
+	// Remove user from all orgs
+	req := NewRequest(t, "POST", "/-/admin/users/4/orgs/remove-all")
+	session.MakeRequest(t, req, http.StatusSeeOther)
+
+	// Verify user is no longer in any orgs
+	orgCountAfter, err := organization.GetOrganizationCount(t.Context(), user)
+	assert.NoError(t, err)
+	assert.Equal(t, int64(0), orgCountAfter, "User should not be in any orgs")
+}