diff --git a/deployctl.ts b/deployctl.ts
index 1e3ac027..49b2d6da 100755
--- a/deployctl.ts
+++ b/deployctl.ts
@@ -7,6 +7,7 @@ import { parseArgs } from "./src/args.ts";
 import { error } from "./src/error.ts";
 import deploySubcommand from "./src/subcommands/deploy.ts";
 import upgradeSubcommand from "./src/subcommands/upgrade.ts";
+import syncEnvSubcommand from "./src/subcommands/sync_env.ts";
 import logsSubcommand from "./src/subcommands/logs.ts";
 import { MINIMUM_DENO_VERSION, VERSION } from "./src/version.ts";
 import { fetchReleases, getConfigPaths } from "./src/utils/info.ts";
@@ -20,10 +21,14 @@ To deploy a local script:
 To deploy a remote script:
   deployctl deploy --project=helloworld https://deno.land/x/deploy/examples/hello.js
 
+To send local env vars a project:
+  deployctl env --project=helloworld ./.env
+
 SUBCOMMANDS:
     deploy    Deploy a script with static files to Deno Deploy
     upgrade   Upgrade deployctl to the given version (defaults to latest)
     logs      View logs for the given project
+    env       Send environment variables defined in a file to a project
 `;
 
 if (!semverGreaterThanOrEquals(Deno.version.deno, MINIMUM_DENO_VERSION)) {
@@ -84,6 +89,8 @@ switch (subcommand) {
   case "upgrade":
     await upgradeSubcommand(args);
     break;
+  case "env":
+    await syncEnvSubcommand(args);
   case "logs":
     await logsSubcommand(args);
     break;
diff --git a/deps.ts b/deps.ts
index baa81c6a..dc665bce 100644
--- a/deps.ts
+++ b/deps.ts
@@ -14,6 +14,8 @@ export {
   red,
   yellow,
 } from "https://deno.land/std@0.170.0/fmt/colors.ts";
+export { LineStream } from "https://deno.land/std@0.148.0/streams/delimiter.ts";
+export { config } from "https://deno.land/std@0.148.0/dotenv/mod.ts";
 export { parse } from "https://deno.land/std@0.195.0/flags/mod.ts";
 export { TextLineStream } from "https://deno.land/std@0.170.0/streams/text_line_stream.ts";
 
diff --git a/src/subcommands/sync_env.ts b/src/subcommands/sync_env.ts
new file mode 100644
index 00000000..eb466277
--- /dev/null
+++ b/src/subcommands/sync_env.ts
@@ -0,0 +1,88 @@
+// Copyright 2021 Deno Land Inc. All rights reserved. MIT license.
+
+import { config, wait } from "../../deps.ts";
+import { error } from "../error.ts";
+import { API } from "../utils/api.ts";
+
+const help = `deployctl env
+Sync environment variable with Deno Deploy.
+
+USAGE:
+    deployctl env [OPTIONS] <ENV_FILE>
+
+OPTIONS:
+    -h, --help                Prints help information
+    -p, --project=NAME        The project to deploy to
+        --token=TOKEN         The API token to use (defaults to DENO_DEPLOY_TOKEN env var)
+`;
+
+export interface Args {
+  help: boolean;
+  token: string | null;
+  project: string | null;
+}
+
+// deno-lint-ignore no-explicit-any
+export default async function (rawArgs: Record<string, any>): Promise<void> {
+  const args: Args = {
+    help: !!rawArgs.help,
+    token: rawArgs.token ? String(rawArgs.token) : null,
+    project: rawArgs.project ? String(rawArgs.project) : null,
+  };
+  const envFile: string | null = typeof rawArgs._[0] === "string"
+    ? rawArgs._[0]
+    : null;
+  if (args.help) {
+    console.log(help);
+    Deno.exit(0);
+  }
+  const token = args.token ?? Deno.env.get("DENO_DEPLOY_TOKEN") ?? null;
+  if (token === null) {
+    console.error(help);
+    error("Missing access token. Set via --token or DENO_DEPLOY_TOKEN.");
+  }
+  if (envFile === null) {
+    console.error(help);
+    error("No enivronment file specifier given.");
+  }
+  if (rawArgs._.length > 1) {
+    console.error(help);
+    error("Too many positional arguments given.");
+  }
+  if (args.project === null) {
+    console.error(help);
+    error("Missing project name.");
+  }
+
+  const projectSpinner = wait("Fetching project information...").start();
+  const api = API.fromToken(token);
+  const project = await api.getProject(args.project);
+  if (project === null) {
+    projectSpinner.fail("Project not found.");
+    Deno.exit(1);
+  }
+  projectSpinner.succeed(`Project: ${project!.name}`);
+
+  const fileSpinner = wait("Reading env file...").start();
+  let envObj: Record<string, string> = {};
+  try {
+    envObj = await config({ path: envFile });
+    if (Object.keys(envObj).length === 0) {
+      fileSpinner.info("File did not contain any variables.");
+      Deno.exit(1);
+    }
+  } catch {
+    fileSpinner.fail(`Could not load file: ${envFile}`);
+    Deno.exit(1);
+  }
+  fileSpinner.succeed(`File Loaded: ${envFile}`);
+
+  const sendSpinner = wait("Sending env variables...").start();
+  try {
+    await api.sendEnv(project!.id, envObj);
+  } catch {
+    sendSpinner.fail("Failed to send variables.");
+    Deno.exit(1);
+  }
+  sendSpinner.succeed("Env variables sent.");
+}
diff --git a/src/utils/api.ts b/src/utils/api.ts
index 843f7fa7..d3dd545d 100644
--- a/src/utils/api.ts
+++ b/src/utils/api.ts
@@ -203,4 +203,14 @@ export class API {
   getMetadata(): Promise<Metadata> {
     return this.#requestJson("/meta");
   }
+
+  async sendEnv(
+    projectId: string,
+    body: Record<string, string>,
+  ): Promise<Response> {
+    return await this.#requestJson(
+      `/projects/${projectId}/env`,
+      { method: "POST", body },
+    );
+  }
 }