diff --git a/apps/web/src/components/CommandPalette.tsx b/apps/web/src/components/CommandPalette.tsx
index a73322fc65114..b840118550382 100644
--- a/apps/web/src/components/CommandPalette.tsx
+++ b/apps/web/src/components/CommandPalette.tsx
@@ -2006,7 +2006,7 @@ function OpenCommandPaletteDialog(props: {
   function getDefaultCloneDestination(
     environmentId: EnvironmentId,
     remoteUrl: string,
-    repository: string,
+    repository?: string,
   ): string {
     const environment = environments.find((candidate) => candidate.environmentId === environmentId);
     return getCloneDestinationPath(
@@ -2061,7 +2061,6 @@ function OpenCommandPaletteDialog(props: {
         const destinationPath = getDefaultCloneDestination(
           addProjectCloneFlow.environmentId,
           remoteUrl,
-          rawRepository,
         );
         setAddProjectCloneFlow({
           step: "confirm",
diff --git a/docs/user/source-control.md b/docs/user/source-control.md
index 39731cb3d35b6..15e125587cb6e 100644
--- a/docs/user/source-control.md
+++ b/docs/user/source-control.md
@@ -155,7 +155,9 @@ publish it. If Git has no name or email on that machine, the project is created
 first commit.
 
 Use **Add Project** in the command palette (`Cmd/Ctrl+K`) to clone a repository. Choose a hosting
-provider or paste a Git URL, then choose where to save it. The project opens right away while the
+provider or paste a Git URL, then choose where to save it. A branch or file page copied from GitHub,
+GitLab, GitCafe, Codeberg or Bitbucket also works: T3 Code clones that repository's default branch.
+On other hosts, paste the repository's clone URL. The project opens right away while the
 clone runs in the background: you can write your first prompt, and sending waits until the files
 are in place. A toast tracks progress and lets you cancel; if the clone fails, retry it from the
 toast or from the banner above the composer. When the host refuses the machine's SSH key, T3 Code
diff --git a/packages/client-runtime/src/operations/projects.test.ts b/packages/client-runtime/src/operations/projects.test.ts
index 5b55a40f4ebb2..698754f069ccc 100644
--- a/packages/client-runtime/src/operations/projects.test.ts
+++ b/packages/client-runtime/src/operations/projects.test.ts
@@ -63,6 +63,33 @@ describe("add project shared logic", () => {
     );
     expect(normalizePastedCloneUrl("group/subgroup/project")).toBe("group/subgroup/project");
     expect(normalizePastedCloneUrl("/srv/git/repo.git")).toBe("/srv/git/repo.git");
+    for (const gitlabProject of [
+      "https://gitlab.com/acme/tools/src/branch/worker.git",
+      "https://scm.example.test/acme/tools/src/branch/worker.git",
+      "https://scm.example.test/acme/tools/src/branch/worker",
+      "https://scm.example.test/team/repo/src/branch/main/-/README.md",
+      "https://forgejo.example.test/a/b/src/branch/mount/team/repo.git",
+    ]) {
+      expect(normalizePastedCloneUrl(gitlabProject)).toBe(gitlabProject);
+    }
+  });
+
+  it("clones the repository when given a page URL copied from the browser", () => {
+    for (const [pageUrl, pageRoute, repository] of [
+      ["https://github.com/pingdotgg/t3code/tree/main", "/tree/", "t3code"],
+      ["https://gitlab.com/gitlab-org/gitlab-runner/-/tree/main", "/-/", "gitlab-runner"],
+      ["https://git.cafe/pingdotgg/t3code/tree/main", "/tree/", "t3code"],
+      ["https://gitlab.example.test/g/p/-/blob/main/src/branch/x", "/-/", "p"],
+      ["https://code.company.test/g/p/-/tree/main", "/-/", "p"],
+      ["https://github.com/pingdotgg/t3code/tree/release.git", "/tree/", "t3code"],
+    ] as const) {
+      const cloneUrl = normalizePastedCloneUrl(pageUrl);
+      expect(cloneUrl).not.toContain(pageRoute);
+      expect(getCloneDirectoryName(cloneUrl)).toBe(repository);
+    }
+    expect(
+      normalizePastedCloneUrl("https://alice:example@bitbucket.org/workspace/repo/src/master/"),
+    ).toBe("https://alice:example@bitbucket.org/workspace/repo");
   });
 
   it("uses HTTPS for repositories selected through a provider", () => {
diff --git a/packages/client-runtime/src/operations/projects.ts b/packages/client-runtime/src/operations/projects.ts
index aab4f0f284290..f0d7e489423fd 100644
--- a/packages/client-runtime/src/operations/projects.ts
+++ b/packages/client-runtime/src/operations/projects.ts
@@ -128,7 +128,8 @@ export function githubIncompleteOwnerRepositoryMessage(
 
 export function normalizePastedCloneUrl(input: string): string {
   const trimmed = input.trim();
-  return REPOSITORY_SHORTHAND.test(trimmed) ? (defaultHostCloneUrl(trimmed) ?? trimmed) : trimmed;
+  if (REPOSITORY_SHORTHAND.test(trimmed)) return defaultHostCloneUrl(trimmed) ?? trimmed;
+  return sourceControlClients.repositoryUrlFromPage(trimmed) ?? trimmed;
 }
 
 export function getDefaultCloneUrl(
diff --git a/packages/source-control-bitbucket/src/shared/definition.test.ts b/packages/source-control-bitbucket/src/shared/definition.test.ts
index f10b9c7e6bdf0..da844c2b2a2ab 100644
--- a/packages/source-control-bitbucket/src/shared/definition.test.ts
+++ b/packages/source-control-bitbucket/src/shared/definition.test.ts
@@ -51,6 +51,17 @@ describe("Bitbucket change request URLs", () => {
   });
 });
 
+describe("Bitbucket repository pages", () => {
+  it("reads the repository from a source view on Bitbucket hosts only", () => {
+    const repositoryUrl = (url: string) => definition.repositoryUrlFromPage?.(new URL(url));
+    expect(repositoryUrl("https://bitbucket.org/workspace/repo/src/main/")).toBe(
+      "https://bitbucket.org/workspace/repo",
+    );
+    expect(repositoryUrl("https://bitbucket.org/workspace/repo")).toBeNull();
+    expect(repositoryUrl("https://scm.example.test/workspace/repo/src/main/")).toBeNull();
+  });
+});
+
 describe("Bitbucket remotes", () => {
   const recognize = (url: string) => recognizeRemoteWith(definition, url);
 
diff --git a/packages/source-control-bitbucket/src/shared/definition.ts b/packages/source-control-bitbucket/src/shared/definition.ts
index 2f643751c599a..edb1b103081cb 100644
--- a/packages/source-control-bitbucket/src/shared/definition.ts
+++ b/packages/source-control-bitbucket/src/shared/definition.ts
@@ -14,6 +14,7 @@ import {
   isChangeRequestOnProjectHost,
   parseChangeRequestPath,
   parseCommitPath,
+  repositoryUrlFromPagePath,
   projectChangeRequestHost,
 } from "@t3tools/source-control-core/shared/definition";
 import { icon } from "./icon.ts";
@@ -23,6 +24,7 @@ const repositoryName = /^[A-Za-z0-9._-]+\/[A-Za-z0-9._-]+$/;
 
 const CHANGE_REQUEST_PATH = /^\/([^/]+\/[^/]+)\/pull-requests\/(\d+)(?:\/|$)/u;
 const COMMIT_PATH = /^\/([^/]+\/[^/]+)\/commits\/([0-9a-f]+)\/?$/iu;
+const REPOSITORY_PAGE_PATH = /^\/([^/]+\/[^/]+)\/src\/[^/]/u;
 
 const KIND = SourceControlProviderKind.make("bitbucket");
 
@@ -96,6 +98,8 @@ export const definition = defineSourceControl({
   commitUrl: (input) => buildCommitUrl(input, "commits"),
   parseCommitUrl: (url) =>
     isBitbucketHost(url.hostname) ? parseCommitPath(url, COMMIT_PATH) : null,
+  repositoryUrlFromPage: (url) =>
+    isBitbucketHost(url.hostname) ? repositoryUrlFromPagePath(url, REPOSITORY_PAGE_PATH) : null,
   changeRequestUrlFromReferenceAutolink: () => null,
   // No endpoint reopens a declined pull request, and nothing documented moves one in or out of
   // draft, so neither is offered rather than failing when pressed.
diff --git a/packages/source-control-core/src/shared/definition.ts b/packages/source-control-core/src/shared/definition.ts
index 8f71e1cc73468..a94ed6708e2d6 100644
--- a/packages/source-control-core/src/shared/definition.ts
+++ b/packages/source-control-core/src/shared/definition.ts
@@ -258,6 +258,12 @@ export interface SourceControlDefinition {
   readonly parseCommitUrl?: (url: URL, known: boolean) => CommitLink | null;
   /** Null when the URL is not one of this host's change requests. */
   readonly parseChangeRequestUrl: (url: URL) => ParsedChangeRequestUrl | null;
+  /**
+   * The repository URL when `url` is a page inside one of this host's repositories. `known` is set
+   * when the caller already knows this host serves the URL's repository. Off a known host, return
+   * `url.href` when the path may already be a clone URL, so no rewrite happens.
+   */
+  readonly repositoryUrlFromPage?: (url: URL, known: boolean) => string | null;
   /**
    * The change request URL a `reference` autolink might name, such as a GitHub `#123` written
    * through the issue route. Only a candidate: the caller must read it as a change request
@@ -410,6 +416,18 @@ export function parseChangeRequestPath(url: URL, route: RegExp): ParsedChangeReq
     : null;
 }
 
+/** Reads a repository page from `url` with `route`, whose first group is the repository path. */
+export function repositoryUrlFromPagePath(url: URL, route: RegExp): string | null {
+  const repository = route.exec(url.pathname)?.[1];
+  if (!repository) return null;
+  // Keeps the credentials and port a private clone relies on.
+  const repositoryUrl = new URL(url);
+  repositoryUrl.pathname = `/${repository}`;
+  repositoryUrl.search = "";
+  repositoryUrl.hash = "";
+  return repositoryUrl.href;
+}
+
 export function changeRequestUrlBelow(webUrl: string, route: string): string {
   return `${webUrl.replace(/\/+$/u, "")}/${route}`;
 }
@@ -615,6 +633,8 @@ export interface SourceControlDefinitionRegistry {
   readonly hostLabelForChangeRequestUrl: (url: string) => string;
   readonly isSameChangeRequest: (left: string, right: string) => boolean;
   readonly changeRequestUrlFromReferenceAutolink: (url: string) => string | null;
+  /** The repository a page URL copied from a browser is in, such as a branch or file view. */
+  readonly repositoryUrlFromPage: (url: string) => string | null;
   /**
    * The host a remote is on, from the first definition in recognition order that claims it, or an
    * unknown host. Null when the remote names no host.
@@ -683,6 +703,8 @@ export function makeSourceControlDefinitionRegistry(
     }
     return undefined;
   };
+  const remoteOwner = (remote: GitRemoteHost) =>
+    recognitionOrder.find((definition) => definition.recognizeRemote(remote) !== null);
   const parseChangeRequestUrl = (value: string): ParsedChangeRequest | null => {
     const url = httpUrl(value);
     if (url === null) return null;
@@ -744,6 +766,24 @@ export function makeSourceControlDefinitionRegistry(
       }
       return null;
     },
+    repositoryUrlFromPage: (value) => {
+      const url = httpUrl(value);
+      if (url === null) return null;
+      // A recognized host's paths are its own, so another host's any-host route never rewrites them.
+      const remote = parseGitRemoteHost(value);
+      const owner = remote === null ? undefined : remoteOwner(remote);
+      if (owner) return owner.repositoryUrlFromPage?.(url, true) ?? null;
+      // Elsewhere a path ending in `.git` is already a clone URL, whatever routes it contains.
+      if (url.pathname.replace(/\/$/u, "").endsWith(".git")) return null;
+      // On an unrecognized host, only rewrite when every route that matches agrees. A route that
+      // answers with the page itself says it may already be the clone URL.
+      const [repositoryUrl, ...others] = new Set(
+        claimOrder.flatMap((definition) => definition.repositoryUrlFromPage?.(url, false) ?? []),
+      );
+      return repositoryUrl !== undefined && repositoryUrl !== url.href && others.length === 0
+        ? repositoryUrl
+        : null;
+    },
     recognizeRemote: (remoteUrl) => {
       const remote = parseGitRemoteHost(remoteUrl);
       if (remote === null) return null;
diff --git a/packages/source-control-forgejo/src/shared/definition.test.ts b/packages/source-control-forgejo/src/shared/definition.test.ts
index 139d21c37f5ca..ccf88aa461def 100644
--- a/packages/source-control-forgejo/src/shared/definition.test.ts
+++ b/packages/source-control-forgejo/src/shared/definition.test.ts
@@ -104,6 +104,22 @@ describe("Forgejo change request URLs", () => {
   });
 });
 
+describe("Forgejo repository pages", () => {
+  it("reads the repository from branch, tag and commit views", () => {
+    const repositoryUrl = (url: string) => definition.repositoryUrlFromPage?.(new URL(url), true);
+    expect(repositoryUrl("https://codeberg.org/forgejo/forgejo/src/branch/forgejo/README.md")).toBe(
+      "https://codeberg.org/forgejo/forgejo",
+    );
+    expect(repositoryUrl("http://git.example.test:3000/git/team/repo/src/tag/v1.0")).toBe(
+      "http://git.example.test:3000/git/team/repo",
+    );
+    expect(repositoryUrl("https://codeberg.org/forgejo/forgejo/src/commit/abc123")).toBe(
+      "https://codeberg.org/forgejo/forgejo",
+    );
+    expect(repositoryUrl("https://codeberg.org/forgejo/forgejo")).toBeNull();
+  });
+});
+
 describe("Forgejo remotes", () => {
   it("recognises Codeberg and Forgejo or Gitea hosts, keeping an HTTP remote's origin", () => {
     for (const host of ["codeberg.org", "forgejo.example.test", "gitea.example.test"]) {
diff --git a/packages/source-control-forgejo/src/shared/definition.ts b/packages/source-control-forgejo/src/shared/definition.ts
index f78805fee1c60..65360496f28d1 100644
--- a/packages/source-control-forgejo/src/shared/definition.ts
+++ b/packages/source-control-forgejo/src/shared/definition.ts
@@ -10,6 +10,7 @@ import {
   isChangeRequestOnProjectHost,
   parseChangeRequestPath,
   parseCommitPath,
+  repositoryUrlFromPagePath,
   projectChangeRequestHost,
   remoteWebOrigin,
 } from "@t3tools/source-control-core/shared/definition";
@@ -22,6 +23,7 @@ const CHANGE_REQUEST_REFERENCE =
 // Forgejo and Gitea run on any hostname, possibly mounted below a path.
 const CHANGE_REQUEST_PATH = /^\/([^/]+(?:\/[^/]+)+)\/pulls\/(\d+)(?:\/|$)/u;
 const COMMIT_PATH = /^\/([^/]+(?:\/[^/]+)+)\/commit\/([0-9a-f]+)\/?$/iu;
+const REPOSITORY_PAGE_PATH = /^\/([^/]+(?:\/[^/]+)+?)\/src\/(?:branch|tag|commit)\/[^/]/u;
 
 const KIND = SourceControlProviderKind.make("forgejo");
 
@@ -87,6 +89,13 @@ export const definition = defineSourceControl({
   changeRequestUrlFromReferenceAutolink: () => null,
   commitUrl: (input) => buildCommitUrl(input, "commit"),
   parseCommitUrl: (url) => parseCommitPath(url, COMMIT_PATH),
+  repositoryUrlFromPage: (url, known) => {
+    // A mount path may itself contain `src/branch/`, so a `.git` path is always the clone URL.
+    if (url.pathname.replace(/\/$/u, "").endsWith(".git")) return null;
+    const repositoryUrl = repositoryUrlFromPagePath(url, REPOSITORY_PAGE_PATH);
+    // Elsewhere the same path is a GitLab project nested under groups named `src` and `branch`.
+    return repositoryUrl === null || known ? repositoryUrl : url.href;
+  },
   changeRequestActions: new Set(["merge", "close", "reopen", "update-branch"] as const),
   // Neither `fj` nor `tea` checks out by number.
   checkoutCommand: ({ number, repositoryUrl }) =>
diff --git a/packages/source-control-gitcafe/src/shared/definition.ts b/packages/source-control-gitcafe/src/shared/definition.ts
index 3749063ce7c1b..2abc258fbf955 100644
--- a/packages/source-control-gitcafe/src/shared/definition.ts
+++ b/packages/source-control-gitcafe/src/shared/definition.ts
@@ -14,6 +14,7 @@ import {
   parseChangeRequestPath,
   parseCommitPath,
   projectChangeRequestHost,
+  repositoryUrlFromPagePath,
 } from "@t3tools/source-control-core/shared/definition";
 import { icon } from "./icon.ts";
 
@@ -23,6 +24,7 @@ const GITCAFE_HOSTS = new Set(["git.cafe", "staging.git.cafe"]);
 /** GitCafe serves pull requests at `/pull/<n>` and redirects the older `/pulls/<n>` there. */
 const CHANGE_REQUEST_PATH = /^\/([^/]+\/[^/]+)\/pulls?\/(\d+)(?:\/|$)/u;
 const COMMIT_PATH = /^\/([^/]+\/[^/]+)\/commit\/([0-9a-f]+)\/?$/iu;
+const REPOSITORY_PAGE_PATH = /^\/([^/]+\/[^/]+)\/(?:tree|blob)\/[^/]/u;
 
 function parseChangeRequestUrl(url: URL) {
   return GITCAFE_HOSTS.has(url.hostname.toLowerCase())
@@ -72,6 +74,10 @@ export const definition = defineSourceControl({
   commitUrl: (input) => buildCommitUrl(input, "commit"),
   parseCommitUrl: (url) =>
     GITCAFE_HOSTS.has(url.hostname.toLowerCase()) ? parseCommitPath(url, COMMIT_PATH) : null,
+  repositoryUrlFromPage: (url) =>
+    GITCAFE_HOSTS.has(url.hostname.toLowerCase())
+      ? repositoryUrlFromPagePath(url, REPOSITORY_PAGE_PATH)
+      : null,
   changeRequestUrlFromReferenceAutolink: () => null,
   changeRequestActions: new Set([
     "ready",
diff --git a/packages/source-control-github/src/shared/definition.test.ts b/packages/source-control-github/src/shared/definition.test.ts
index 924ab31716853..17ac17ad437b1 100644
--- a/packages/source-control-github/src/shared/definition.test.ts
+++ b/packages/source-control-github/src/shared/definition.test.ts
@@ -96,6 +96,14 @@ describe("GitHub change request URLs", () => {
   });
 });
 
+describe("GitHub repository pages", () => {
+  it("leaves the tree route on other hosts to them", () => {
+    expect(
+      definition.repositoryUrlFromPage?.(new URL("https://scm.example.test/o/r/tree/main")),
+    ).toBeNull();
+  });
+});
+
 describe("GitHub remotes", () => {
   const recognize = (url: string) => recognizeRemoteWith(definition, url);
 
diff --git a/packages/source-control-github/src/shared/definition.ts b/packages/source-control-github/src/shared/definition.ts
index 3c33cfb3a3f64..b08547ae12c1b 100644
--- a/packages/source-control-github/src/shared/definition.ts
+++ b/packages/source-control-github/src/shared/definition.ts
@@ -8,6 +8,7 @@ import {
   isChangeRequestOnProjectHost,
   parseChangeRequestPath,
   parseCommitPath,
+  repositoryUrlFromPagePath,
   projectChangeRequestHost,
   remoteWebOrigin,
   type SourceControlAppSignIn,
@@ -26,6 +27,7 @@ const CHANGE_REQUEST_REFERENCE =
 const CHANGE_REQUEST_PATH = /^\/([^/]+\/[^/]+)\/pull\/(\d+)(?:\/|$)/u;
 const COMMIT_PATH = /^\/([^/]+\/[^/]+)\/(?:commit|pull\/\d+\/commits)\/([0-9a-f]+)\/?$/iu;
 const ISSUE_PATH = /^\/([^/]+\/[^/]+)\/issues\/(\d+)(?:\/|$)/u;
+const REPOSITORY_PAGE_PATH = /^\/([^/]+\/[^/]+)\/(?:tree|blob)\/[^/]/u;
 
 const KIND = SourceControlProviderKind.make("github");
 
@@ -98,6 +100,8 @@ export const definition = defineSourceControl({
   parseCommitUrl: (url, known) =>
     known || isGitHubHost(url.hostname) ? parseCommitPath(url, COMMIT_PATH) : null,
   parseChangeRequestUrl: (url) => parseChangeRequestPath(url, CHANGE_REQUEST_PATH),
+  repositoryUrlFromPage: (url) =>
+    isGitHubHost(url.hostname) ? repositoryUrlFromPagePath(url, REPOSITORY_PAGE_PATH) : null,
   // GitHub writes every bare reference through `/issues/`, including pull requests.
   changeRequestUrlFromReferenceAutolink: (url) => {
     const match = isGitHubHost(url.hostname) ? ISSUE_PATH.exec(url.pathname) : null;
diff --git a/packages/source-control-gitlab/src/shared/definition.ts b/packages/source-control-gitlab/src/shared/definition.ts
index 16d5bb8cf0efa..96d6f7be7200f 100644
--- a/packages/source-control-gitlab/src/shared/definition.ts
+++ b/packages/source-control-gitlab/src/shared/definition.ts
@@ -7,6 +7,7 @@ import {
   isChangeRequestOnProjectHost,
   parseChangeRequestPath,
   parseCommitPath,
+  repositoryUrlFromPagePath,
   projectChangeRequestHost,
   remoteWebOrigin,
 } from "@t3tools/source-control-core/shared/definition";
@@ -20,6 +21,8 @@ const CHANGE_REQUEST_REFERENCE =
 // Self-managed GitLab runs on any hostname and nests projects in groups.
 const CHANGE_REQUEST_PATH = /^\/([^/]+(?:\/[^/]+)+)\/-\/merge_requests\/(\d+)(?:\/|$)/u;
 const COMMIT_PATH = /^\/([^/]+(?:\/[^/]+)+)\/-\/commit\/([0-9a-f]+)\/?$/iu;
+// Every GitLab page inside a project sits below its first `/-/`.
+const REPOSITORY_PAGE_PATH = /^\/([^/]+(?:\/[^/]+)+?)\/-\//u;
 
 const KIND = SourceControlProviderKind.make("gitlab");
 
@@ -47,6 +50,7 @@ export const definition = defineSourceControl({
   parseChangeRequestUrl: (url) => parseChangeRequestPath(url, CHANGE_REQUEST_PATH),
   commitUrl: (input) => buildCommitUrl(input, "-/commit"),
   parseCommitUrl: (url) => parseCommitPath(url, COMMIT_PATH),
+  repositoryUrlFromPage: (url) => repositoryUrlFromPagePath(url, REPOSITORY_PAGE_PATH),
   // `!12` already links the merge request itself; `#12` is always an issue.
   changeRequestUrlFromReferenceAutolink: (url) =>
     CHANGE_REQUEST_PATH.test(url.pathname) ? url.toString() : null,