diff --git a/tools/src/compileProtos.ts b/tools/src/compileProtos.ts
index e127af985..5925bc2e0 100644
--- a/tools/src/compileProtos.ts
+++ b/tools/src/compileProtos.ts
@@ -238,6 +238,13 @@ async function buildListOfProtos(
   return result;
 }
 
+interface CompileProtosOptions {
+  skipJson?: boolean;
+  esm?: boolean;
+  keepCase?: boolean;
+  forceNumber?: boolean;
+}
+
 /**
  * Runs `pbjs` to compile the given proto files, placing the result into
  * `./protos/protos.json`. No support for changing output filename for now
@@ -249,10 +256,16 @@ async function buildListOfProtos(
 async function compileProtos(
   rootName: string,
   protos: string[],
-  skipJson = false,
-  esm = false
+  options: CompileProtosOptions
 ): Promise<void> {
-  if (!skipJson) {
+  const extraArgs = [];
+  if (options.keepCase) {
+    extraArgs.push('--keep-case');
+  }
+  if (options.forceNumber) {
+    extraArgs.push('--force-number');
+  }
+  if (!options.skipJson) {
     // generate protos.json file from proto list
     const jsonOutput = path.join('protos', 'protos.json');
     if (protos.length === 0) {
@@ -263,6 +276,7 @@ async function compileProtos(
     const pbjsArgs4JSON = [
       '--target',
       'json',
+      ...extraArgs,
       '-p',
       'protos',
       '-p',
@@ -275,7 +289,7 @@ async function compileProtos(
   }
 
   // generate protos/protos.js from protos.json
-  const jsOutput = esm
+  const jsOutput = options.esm
     ? path.join('protos', 'protos.cjs')
     : path.join('protos', 'protos.js');
   const pbjsArgs4js = [
@@ -283,6 +297,7 @@ async function compileProtos(
     rootName,
     '--target',
     'static-module',
+    ...extraArgs,
     '-p',
     'protos',
     '-p',
@@ -298,13 +313,14 @@ async function compileProtos(
   await writeFile(jsOutput, jsResult);
 
   let jsOutputEsm;
-  if (esm) {
+  if (options.esm) {
     jsOutputEsm = path.join('protos', 'protos.js');
     const pbjsArgs4jsEsm = [
       '-r',
       rootName,
       '--target',
       'static-module',
+      ...extraArgs,
       '-p',
       'protos',
       '-p',
@@ -324,7 +340,7 @@ async function compileProtos(
 
   // generate protos/protos.d.ts
   const tsOutput = path.join('protos', 'protos.d.ts');
-  const pbjsArgs4ts = [esm ? jsOutputEsm! : jsOutput, '-o', tsOutput];
+  const pbjsArgs4ts = [options.esm ? jsOutputEsm! : jsOutput, '-o', tsOutput];
   await pbtsMain(pbjsArgs4ts);
 
   let tsResult = (await readFile(tsOutput)).toString();
@@ -372,6 +388,8 @@ export async function main(parameters: string[]): Promise<void> {
   const protoJsonFiles: string[] = [];
   let skipJson = false;
   let esm = false;
+  let keepCase = false;
+  let forceNumber = false;
   const directories: string[] = [];
   for (const parameter of parameters) {
     if (parameter === '--skip-json') {
@@ -382,6 +400,14 @@ export async function main(parameters: string[]): Promise<void> {
       esm = true;
       continue;
     }
+    if (parameter === '--keep-case') {
+      keepCase = true;
+      continue;
+    }
+    if (parameter === '--force-number') {
+      forceNumber = true;
+      continue;
+    }
     // it's not an option so it's a directory
     const directory = parameter;
     directories.push(directory);
@@ -390,10 +416,10 @@ export async function main(parameters: string[]): Promise<void> {
   const rootName = await generateRootName(directories);
   if (esm) {
     const esmProtos = await buildListOfProtos(protoJsonFiles, esm);
-    await compileProtos(rootName, esmProtos, skipJson, esm);
+    await compileProtos(rootName, esmProtos, {skipJson, esm, keepCase, forceNumber});
   }
   const protos = await buildListOfProtos(protoJsonFiles, esm);
-  await compileProtos(rootName, protos, skipJson, esm);
+  await compileProtos(rootName, protos, {skipJson, esm, keepCase, forceNumber});
 }
 
 /**
diff --git a/tools/test/compileProtos.ts b/tools/test/compileProtos.ts
index 8e8a38a62..5382a2454 100644
--- a/tools/test/compileProtos.ts
+++ b/tools/test/compileProtos.ts
@@ -315,4 +315,48 @@ describe('compileProtos tool', () => {
       assert.equal(js.toString().includes(link), false);
     }
   });
+
+  it('converts names to camelCase and uses Long by default', async function() {
+    this.timeout(20000);
+    const dirName = path.join(testDir, 'protoLists', 'parameters');
+    await compileProtos.main([dirName]);
+    const jsonBuf = await readFile(expectedJsonResultFile);
+    const json = JSON.parse(jsonBuf.toString());
+    const js = await readFile(expectedJSResultFile);
+    assert(json.nested.test.nested.Test.fields.snakeCaseField);
+    assert(js.includes('@property {number|Long|null} [checkForceNumber]'));
+  });
+
+  it('understands --keep-case', async function() {
+    this.timeout(20000);
+    const dirName = path.join(testDir, 'protoLists', 'parameters');
+    await compileProtos.main(['--keep-case', dirName]);
+    const jsonBuf = await readFile(expectedJsonResultFile);
+    const json = JSON.parse(jsonBuf.toString());
+    const js = await readFile(expectedJSResultFile);
+    assert(json.nested.test.nested.Test.fields.snake_case_field);
+    assert(js.includes('@property {number|Long|null} [check_force_number]'));
+  });
+
+  it('understands --force-number', async function() {
+    this.timeout(20000);
+    const dirName = path.join(testDir, 'protoLists', 'parameters');
+    await compileProtos.main(['--force-number', dirName]);
+    const jsonBuf = await readFile(expectedJsonResultFile);
+    const json = JSON.parse(jsonBuf.toString());
+    const js = await readFile(expectedJSResultFile);
+    assert(json.nested.test.nested.Test.fields.snakeCaseField);
+    assert(js.includes('@property {number|null} [checkForceNumber]'));
+  });
+
+  it('understands both --keep-case and --force-number', async function() {
+    this.timeout(20000);
+    const dirName = path.join(testDir, 'protoLists', 'parameters');
+    await compileProtos.main(['--keep-case', '--force-number', dirName]);
+    const jsonBuf = await readFile(expectedJsonResultFile);
+    const json = JSON.parse(jsonBuf.toString());
+    const js = await readFile(expectedJSResultFile);
+    assert(json.nested.test.nested.Test.fields.snake_case_field);
+    assert(js.includes('@property {number|null} [check_force_number]'));
+  });
 });
diff --git a/tools/test/fixtures/protoLists/parameters/parameters_proto_list.json b/tools/test/fixtures/protoLists/parameters/parameters_proto_list.json
new file mode 100644
index 000000000..395b30309
--- /dev/null
+++ b/tools/test/fixtures/protoLists/parameters/parameters_proto_list.json
@@ -0,0 +1,3 @@
+[
+  "../../protos/google/example/library/v1/parameters.proto"
+]
diff --git a/tools/test/fixtures/protos/google/example/library/v1/parameters.proto b/tools/test/fixtures/protos/google/example/library/v1/parameters.proto
new file mode 100644
index 000000000..5326667d7
--- /dev/null
+++ b/tools/test/fixtures/protos/google/example/library/v1/parameters.proto
@@ -0,0 +1,8 @@
+syntax = "proto3";
+
+package test;
+
+message Test {
+  string snake_case_field = 1;
+  uint64 check_force_number = 2;
+}