diff --git a/src/converters/assimp.ts b/src/converters/assimp.ts
index 869f28e..69f3258 100644
--- a/src/converters/assimp.ts
+++ b/src/converters/assimp.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/calibre.ts b/src/converters/calibre.ts
index 153de16..1d06695 100644
--- a/src/converters/calibre.ts
+++ b/src/converters/calibre.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/dvisvgm.ts b/src/converters/dvisvgm.ts
index 76ef5c1..a48bc69 100644
--- a/src/converters/dvisvgm.ts
+++ b/src/converters/dvisvgm.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/ffmpeg.ts b/src/converters/ffmpeg.ts
index 8207c61..f7d183f 100644
--- a/src/converters/ffmpeg.ts
+++ b/src/converters/ffmpeg.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 // This could be done dynamically by running `ffmpeg -formats` and parsing the output
 export const properties = {
diff --git a/src/converters/graphicsmagick.ts b/src/converters/graphicsmagick.ts
index 5551341..4af168e 100644
--- a/src/converters/graphicsmagick.ts
+++ b/src/converters/graphicsmagick.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/imagemagick.ts b/src/converters/imagemagick.ts
index eb2eaa7..69eb359 100644
--- a/src/converters/imagemagick.ts
+++ b/src/converters/imagemagick.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 // declare possible conversions
 export const properties = {
diff --git a/src/converters/inkscape.ts b/src/converters/inkscape.ts
index 4497e2f..dce123b 100644
--- a/src/converters/inkscape.ts
+++ b/src/converters/inkscape.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/libheif.ts b/src/converters/libheif.ts
index b88e177..3df1f52 100644
--- a/src/converters/libheif.ts
+++ b/src/converters/libheif.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/libjxl.ts b/src/converters/libjxl.ts
index 6ff825f..336ad51 100644
--- a/src/converters/libjxl.ts
+++ b/src/converters/libjxl.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 // declare possible conversions
 export const properties = {
diff --git a/src/converters/libreoffice.ts b/src/converters/libreoffice.ts
index 73249dc..02f389a 100644
--- a/src/converters/libreoffice.ts
+++ b/src/converters/libreoffice.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/msgconvert.ts b/src/converters/msgconvert.ts
index 0c0b663..612a2ef 100644
--- a/src/converters/msgconvert.ts
+++ b/src/converters/msgconvert.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/pandoc.ts b/src/converters/pandoc.ts
index e5b1db1..c14c98b 100644
--- a/src/converters/pandoc.ts
+++ b/src/converters/pandoc.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/potrace.ts b/src/converters/potrace.ts
index 6027491..b18f202 100644
--- a/src/converters/potrace.ts
+++ b/src/converters/potrace.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/resvg.ts b/src/converters/resvg.ts
index 3155483..fcdc2e4 100644
--- a/src/converters/resvg.ts
+++ b/src/converters/resvg.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/src/converters/vips.ts b/src/converters/vips.ts
index b89db12..310053f 100644
--- a/src/converters/vips.ts
+++ b/src/converters/vips.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 // declare possible conversions
 export const properties = {
diff --git a/src/converters/xelatex.ts b/src/converters/xelatex.ts
index 784acdc..6bd0802 100644
--- a/src/converters/xelatex.ts
+++ b/src/converters/xelatex.ts
@@ -1,5 +1,5 @@
 import { execFile as execFileOriginal } from "node:child_process";
-import { ExecFileFn } from "./types.ts";
+import { ExecFileFn } from "./types";
 
 export const properties = {
   from: {
diff --git a/tests/converters/assimp.test.ts b/tests/converters/assimp.test.ts
index e032093..ea3479b 100644
--- a/tests/converters/assimp.test.ts
+++ b/tests/converters/assimp.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/assimp.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/assimp";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/calibre.test.ts b/tests/converters/calibre.test.ts
index 91c1b23..773017d 100644
--- a/tests/converters/calibre.test.ts
+++ b/tests/converters/calibre.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/calibre.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/calibre";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/dvisvgm.test.ts b/tests/converters/dvisvgm.test.ts
index a638f13..2723801 100644
--- a/tests/converters/dvisvgm.test.ts
+++ b/tests/converters/dvisvgm.test.ts
@@ -1,8 +1,8 @@
 import type { ExecFileException } from "node:child_process";
 import { beforeEach, expect, test } from "bun:test";
-import { convert } from "../../src/converters/dvisvgm.ts";
-import { ExecFileFn } from "../../src/converters/types.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/dvisvgm";
+import { ExecFileFn } from "../../src/converters/types";
+import { runCommonTests } from "./helpers/commonTests";
 
 let calls: string[][] = [];
 
diff --git a/tests/converters/ffmpeg.test.ts b/tests/converters/ffmpeg.test.ts
index 01d4633..6f0afc6 100644
--- a/tests/converters/ffmpeg.test.ts
+++ b/tests/converters/ffmpeg.test.ts
@@ -1,5 +1,5 @@
 import { beforeEach, expect, test } from "bun:test";
-import { convert } from "../../src/converters/ffmpeg.ts";
+import { convert } from "../../src/converters/ffmpeg";
 
 let calls: string[][] = [];
 
diff --git a/tests/converters/graphicsmagick.test.ts b/tests/converters/graphicsmagick.test.ts
index 625ec0d..81fbfe4 100644
--- a/tests/converters/graphicsmagick.test.ts
+++ b/tests/converters/graphicsmagick.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/graphicsmagick.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/graphicsmagick";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/helpers/commonTests.ts b/tests/converters/helpers/commonTests.ts
index 9b6b4f0..64483b3 100644
--- a/tests/converters/helpers/commonTests.ts
+++ b/tests/converters/helpers/commonTests.ts
@@ -1,11 +1,11 @@
 import { test } from "bun:test";
-import { ConvertFnWithExecFile } from "../../../src/converters/types.ts";
+import { ConvertFnWithExecFile } from "../../../src/converters/types";
 import {
   runConvertFailTest,
   runConvertLogsStderror,
   runConvertLogsStderrorAndStdout,
   runConvertSuccessTest,
-} from "./converters.ts";
+} from "./converters";
 
 export function runCommonTests(convert: ConvertFnWithExecFile) {
   test("convert resolves when execFile succeeds", async () => {
diff --git a/tests/converters/helpers/converters.ts b/tests/converters/helpers/converters.ts
index f941bc9..12942f6 100644
--- a/tests/converters/helpers/converters.ts
+++ b/tests/converters/helpers/converters.ts
@@ -1,6 +1,6 @@
 import type { ExecFileException } from "node:child_process";
 import { expect } from "bun:test";
-import { ConvertFnWithExecFile, ExecFileFn } from "../../../src/converters/types.ts";
+import { ConvertFnWithExecFile, ExecFileFn } from "../../../src/converters/types";
 
 export async function runConvertSuccessTest(convertFn: ConvertFnWithExecFile) {
   const originalConsoleLog = console.log;
diff --git a/tests/converters/imagemagick.test.ts b/tests/converters/imagemagick.test.ts
index 4916177..dd47b7a 100644
--- a/tests/converters/imagemagick.test.ts
+++ b/tests/converters/imagemagick.test.ts
@@ -1,8 +1,8 @@
 import type { ExecFileException } from "node:child_process";
 import { beforeEach, expect, test } from "bun:test";
-import { convert } from "../../src/converters/imagemagick.ts";
-import { ExecFileFn } from "../../src/converters/types.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/imagemagick";
+import { ExecFileFn } from "../../src/converters/types";
+import { runCommonTests } from "./helpers/commonTests";
 
 let calls: string[][] = [];
 
diff --git a/tests/converters/inkscape.test.ts b/tests/converters/inkscape.test.ts
index ad15a3b..a75ea3b 100644
--- a/tests/converters/inkscape.test.ts
+++ b/tests/converters/inkscape.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/inkscape.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/inkscape";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/libheif.test.ts b/tests/converters/libheif.test.ts
index 9fb72fc..48d8154 100644
--- a/tests/converters/libheif.test.ts
+++ b/tests/converters/libheif.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/libheif.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/libheif";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/libjxl.test.ts b/tests/converters/libjxl.test.ts
index ad4e5f4..7171bdb 100644
--- a/tests/converters/libjxl.test.ts
+++ b/tests/converters/libjxl.test.ts
@@ -1,8 +1,8 @@
 import type { ExecFileException } from "node:child_process";
 import { beforeEach, expect, test } from "bun:test";
-import { convert } from "../../src/converters/libjxl.ts";
-import { ExecFileFn } from "../../src/converters/types.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/libjxl";
+import { ExecFileFn } from "../../src/converters/types";
+import { runCommonTests } from "./helpers/commonTests";
 
 let command: string = "";
 
diff --git a/tests/converters/msgconvert.test.ts b/tests/converters/msgconvert.test.ts
index ffdf840..7ef0dca 100644
--- a/tests/converters/msgconvert.test.ts
+++ b/tests/converters/msgconvert.test.ts
@@ -1,7 +1,7 @@
 import type { ExecFileException } from "node:child_process";
 import { expect, test } from "bun:test";
-import { convert } from "../../src/converters/msgconvert.ts";
-import { ExecFileFn } from "../../src/converters/types.ts";
+import { convert } from "../../src/converters/msgconvert";
+import { ExecFileFn } from "../../src/converters/types";
 
 test("convert rejects conversion if input filetype is not msg and output type is not eml", async () => {
   const mockExecFile: ExecFileFn = (
diff --git a/tests/converters/potrace.test.ts b/tests/converters/potrace.test.ts
index 61c3895..90dd86b 100644
--- a/tests/converters/potrace.test.ts
+++ b/tests/converters/potrace.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/potrace.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/potrace";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/resvg.test.ts b/tests/converters/resvg.test.ts
index ce7be18..88b3aba 100644
--- a/tests/converters/resvg.test.ts
+++ b/tests/converters/resvg.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/resvg.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/resvg";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);
 
diff --git a/tests/converters/vips.test.ts b/tests/converters/vips.test.ts
index ec6420d..b97be81 100644
--- a/tests/converters/vips.test.ts
+++ b/tests/converters/vips.test.ts
@@ -1,8 +1,8 @@
 import type { ExecFileException } from "node:child_process";
 import { beforeEach, expect, test } from "bun:test";
-import { ExecFileFn } from "../../src/converters/types.ts";
-import { convert } from "../../src/converters/vips.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { ExecFileFn } from "../../src/converters/types";
+import { convert } from "../../src/converters/vips";
+import { runCommonTests } from "./helpers/commonTests";
 
 let calls: string[][] = [];
 
diff --git a/tests/converters/xelatex.test.ts b/tests/converters/xelatex.test.ts
index f05ea15..5e5f0b0 100644
--- a/tests/converters/xelatex.test.ts
+++ b/tests/converters/xelatex.test.ts
@@ -1,6 +1,6 @@
 import { test } from "bun:test";
-import { convert } from "../../src/converters/xelatex.ts";
-import { runCommonTests } from "./helpers/commonTests.ts";
+import { convert } from "../../src/converters/xelatex";
+import { runCommonTests } from "./helpers/commonTests";
 
 runCommonTests(convert);