diff --git a/.eslintrc.yml b/.eslintrc.yml
index dd0bcff9a03..051465483de 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -70,7 +70,7 @@ rules:
   no-useless-call: error
   no-useless-computed-key: error
   no-useless-concat: error
-  no-useless-constructor: error
+  '@typescript-eslint/no-useless-constructor': error
   no-useless-escape: error
   no-useless-rename: error
   no-useless-return: error
diff --git a/lib/objdumper/_all.js b/lib/objdumper/_all.ts
similarity index 96%
rename from lib/objdumper/_all.js
rename to lib/objdumper/_all.ts
index e8e0d620782..17784a71f08 100644
--- a/lib/objdumper/_all.js
+++ b/lib/objdumper/_all.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
diff --git a/lib/objdumper/base.js b/lib/objdumper/base.ts
similarity index 71%
rename from lib/objdumper/base.js
rename to lib/objdumper/base.ts
index 77cc7ee8683..6d45596791a 100644
--- a/lib/objdumper/base.js
+++ b/lib/objdumper/base.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -22,13 +22,10 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.
 
-export class BaseObjdumper {
-    constructor() {
-        this.intelAsmOptions = null;
-        this.widthOptions = null;
-    }
+export abstract class BaseObjdumper {
+    constructor(protected readonly intelAsmOptions: string[], protected readonly widthOptions: string[]) {}
 
-    getDefaultArgs(outputFilename, demangle, intelAsm) {
+    getDefaultArgs(outputFilename: string, demangle?: boolean, intelAsm?: boolean) {
         const args = ['-d', outputFilename, '-l', ...this.widthOptions];
 
         if (demangle) args.push('-C');
@@ -36,4 +33,10 @@ export class BaseObjdumper {
 
         return args;
     }
+
+    // There's no way in TS to do an abstract static members and interfaces don't allow "static" at all.
+    // There's apparently a hack with InstanceType but I couldn't get it working. I think this is the best solution.
+    static get key(): string {
+        throw new Error('Objdumper must provide a `static get key()` implementation');
+    }
 }
diff --git a/lib/objdumper/binutils.js b/lib/objdumper/binutils.ts
similarity index 88%
rename from lib/objdumper/binutils.js
rename to lib/objdumper/binutils.ts
index da85d979782..99f33ae96a5 100644
--- a/lib/objdumper/binutils.js
+++ b/lib/objdumper/binutils.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -25,14 +25,11 @@
 import {BaseObjdumper} from './base';
 
 export class BinutilsObjdumper extends BaseObjdumper {
-    static get key() {
-        return 'binutils';
-    }
-
     constructor() {
-        super();
+        super(['-M', 'intel'], ['--insn-width=16']);
+    }
 
-        this.intelAsmOptions = ['-M', 'intel'];
-        this.widthOptions = ['--insn-width=16'];
+    static override get key() {
+        return 'binutils';
     }
 }
diff --git a/lib/objdumper/da65.js b/lib/objdumper/da65.ts
similarity index 91%
rename from lib/objdumper/da65.js
rename to lib/objdumper/da65.ts
index 5cf7a7acf93..b48bfc631dc 100644
--- a/lib/objdumper/da65.js
+++ b/lib/objdumper/da65.ts
@@ -25,18 +25,15 @@
 import {BaseObjdumper} from './base';
 
 export class Da65Objdumper extends BaseObjdumper {
-    static get key() {
-        return 'da65';
-    }
-
     constructor() {
-        super();
-
-        this.intelAsmOptions = [];
-        this.widthOptions = [];
+        super([], []);
     }
 
-    getDefaultArgs(outputFilename) {
+    override getDefaultArgs(outputFilename: string) {
         return [outputFilename];
     }
+
+    static override get key() {
+        return 'da65';
+    }
 }
diff --git a/lib/objdumper/default.js b/lib/objdumper/default.ts
similarity index 94%
rename from lib/objdumper/default.js
rename to lib/objdumper/default.ts
index c89ca48d859..886d2d429bd 100644
--- a/lib/objdumper/default.js
+++ b/lib/objdumper/default.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -25,7 +25,7 @@
 import {BinutilsObjdumper} from './binutils';
 
 export class DefaultObjdumper extends BinutilsObjdumper {
-    static get key() {
+    static override get key() {
         return 'default';
     }
 }
diff --git a/lib/objdumper/elftoolchain.js b/lib/objdumper/elftoolchain.ts
similarity index 89%
rename from lib/objdumper/elftoolchain.js
rename to lib/objdumper/elftoolchain.ts
index d6d5221b697..408aa2b3a69 100644
--- a/lib/objdumper/elftoolchain.js
+++ b/lib/objdumper/elftoolchain.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -25,14 +25,11 @@
 import {BaseObjdumper} from './base';
 
 export class ElfToolChainObjdumper extends BaseObjdumper {
-    static get key() {
-        return 'elftoolchain';
-    }
-
     constructor() {
-        super();
+        super(['-M', 'intel'], []);
+    }
 
-        this.intelAsmOptions = ['-M', 'intel'];
-        this.widthOptions = [];
+    static override get key() {
+        return 'elftoolchain';
     }
 }
diff --git a/lib/objdumper/index.js b/lib/objdumper/index.ts
similarity index 96%
rename from lib/objdumper/index.js
rename to lib/objdumper/index.ts
index 791d8a500ec..716db51c134 100644
--- a/lib/objdumper/index.js
+++ b/lib/objdumper/index.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
diff --git a/lib/objdumper/llvm.js b/lib/objdumper/llvm.ts
similarity index 89%
rename from lib/objdumper/llvm.js
rename to lib/objdumper/llvm.ts
index 93e73bc4a8b..217ba107370 100644
--- a/lib/objdumper/llvm.js
+++ b/lib/objdumper/llvm.ts
@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Compiler Explorer Authors
+// Copyright (c) 2022, Compiler Explorer Authors
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -25,14 +25,11 @@
 import {BaseObjdumper} from './base';
 
 export class LlvmObjdumper extends BaseObjdumper {
-    static get key() {
-        return 'llvm';
-    }
-
     constructor() {
-        super();
+        super(['--x86-asm-syntax=intel'], []);
+    }
 
-        this.intelAsmOptions = ['--x86-asm-syntax=intel'];
-        this.widthOptions = [];
+    static override get key() {
+        return 'llvm';
     }
 }