diff --git a/src/2020/day8/input b/src/2020/day8/input
new file mode 100644
index 0000000..85565d0
--- /dev/null
+++ b/src/2020/day8/input
@@ -0,0 +1,647 @@
+acc +15
+jmp +461
+acc +6
+nop +445
+jmp +324
+jmp +253
+acc -4
+acc +22
+acc +11
+jmp +471
+jmp +145
+acc +19
+jmp -7
+jmp +431
+nop +66
+acc +48
+jmp +409
+jmp +514
+jmp +1
+acc +32
+jmp +552
+acc +21
+jmp +317
+nop +488
+jmp +500
+jmp +214
+acc +41
+jmp +17
+acc +19
+jmp +1
+acc +28
+jmp +74
+acc +37
+acc +46
+acc -10
+jmp +455
+acc +33
+jmp +585
+acc -13
+acc +18
+jmp +19
+jmp +601
+acc +30
+jmp +272
+acc +18
+acc +50
+acc +1
+acc +29
+jmp +50
+nop +573
+jmp +562
+nop +274
+jmp +1
+acc +6
+jmp +1
+jmp +64
+jmp +1
+acc +37
+jmp +161
+nop +549
+acc +21
+jmp +1
+nop +325
+jmp +331
+acc +0
+acc +25
+jmp +431
+nop +349
+jmp +45
+acc +37
+acc +9
+jmp +354
+jmp +132
+jmp +307
+jmp +1
+nop +465
+jmp +386
+acc +13
+acc +20
+jmp -20
+acc -15
+nop +158
+jmp +415
+acc +33
+acc +40
+acc +38
+acc -2
+jmp +81
+acc +44
+acc +9
+acc +15
+nop +139
+jmp -18
+nop +187
+acc +47
+acc +45
+acc +40
+jmp +456
+acc +48
+jmp +1
+jmp -75
+acc +11
+acc -13
+nop +222
+jmp +202
+acc +38
+acc +31
+acc -11
+acc +1
+jmp +431
+acc +37
+nop +195
+jmp +118
+acc -8
+jmp +1
+jmp +154
+acc +7
+acc +13
+jmp +43
+jmp +507
+acc -2
+acc +11
+jmp +465
+acc -12
+nop -103
+jmp +50
+acc +2
+nop +4
+acc +46
+acc +17
+jmp +100
+nop +149
+jmp +397
+nop -28
+jmp +236
+acc +0
+nop +465
+acc +19
+acc -5
+jmp +91
+jmp +118
+acc -3
+nop +176
+acc +8
+jmp +24
+jmp +235
+acc -7
+nop -1
+nop +347
+acc +33
+jmp +165
+acc -18
+acc +9
+acc -8
+jmp +179
+acc -3
+acc +40
+jmp +1
+acc +5
+jmp +475
+jmp +70
+acc +50
+acc -1
+acc -11
+acc +43
+jmp +283
+nop +114
+jmp +161
+acc -19
+acc +50
+acc +47
+acc +49
+jmp +381
+jmp +1
+jmp -94
+nop +373
+acc +26
+acc +7
+jmp +41
+acc -7
+jmp +264
+nop -40
+acc +23
+jmp -60
+acc +15
+acc +19
+acc +39
+acc -16
+jmp +283
+acc +4
+jmp +258
+acc +0
+acc +38
+acc -6
+jmp +32
+acc +33
+jmp +1
+acc -4
+acc +17
+jmp +149
+acc -17
+acc +39
+nop +75
+jmp -136
+acc +6
+acc +10
+jmp +1
+acc +9
+jmp +390
+jmp +363
+acc +32
+jmp +95
+jmp -71
+acc +12
+jmp +86
+acc +49
+acc +2
+acc +0
+jmp +139
+nop +363
+acc +21
+jmp +366
+jmp +1
+acc +16
+acc -13
+jmp +55
+jmp -159
+acc +46
+acc +50
+jmp +266
+acc +2
+jmp -180
+jmp -181
+acc +41
+acc -3
+nop -176
+jmp +121
+acc +23
+jmp +281
+acc +5
+acc +14
+acc -8
+jmp +128
+jmp +281
+nop +81
+jmp +1
+acc +36
+acc +34
+jmp -176
+acc +8
+jmp +309
+acc +11
+nop -77
+jmp -40
+acc +0
+acc +8
+acc +14
+jmp +296
+nop +197
+nop -124
+acc +38
+acc +9
+jmp +310
+jmp -183
+jmp +353
+acc +28
+acc -18
+nop +120
+jmp -217
+acc +49
+acc +38
+jmp -243
+nop -68
+acc +9
+acc +15
+nop +43
+jmp -46
+acc -4
+jmp +262
+jmp +176
+nop -139
+acc +38
+acc +35
+acc -8
+jmp -225
+acc +37
+acc +49
+acc +42
+nop +278
+jmp +264
+acc -11
+nop +291
+acc +21
+nop -221
+jmp +80
+acc +15
+acc +13
+acc +2
+nop -40
+jmp +309
+acc -18
+acc -5
+acc +24
+jmp -70
+acc +12
+jmp -261
+acc +4
+acc -2
+acc +3
+jmp +1
+jmp +302
+acc -7
+jmp +1
+acc +39
+jmp +73
+jmp +18
+acc +3
+jmp +277
+acc +4
+nop +125
+nop -284
+acc +41
+jmp -312
+acc +13
+jmp -183
+nop -35
+jmp -137
+jmp -76
+acc +1
+acc +31
+acc +39
+jmp +56
+jmp +290
+jmp +1
+acc +12
+nop +71
+acc +43
+jmp -296
+jmp +68
+acc -14
+acc +35
+nop -290
+jmp -24
+acc +39
+acc -8
+nop +110
+jmp +1
+jmp +78
+acc +11
+acc +9
+acc -11
+acc +50
+jmp +167
+acc +50
+acc +19
+acc +0
+jmp -221
+acc -4
+acc -6
+nop +11
+acc +49
+jmp -348
+nop +197
+acc +6
+jmp -196
+nop -155
+jmp -76
+acc +50
+acc -8
+jmp -89
+acc +9
+jmp +255
+acc +25
+jmp +199
+jmp -35
+acc +46
+acc +25
+jmp +1
+acc +32
+jmp -31
+acc -3
+acc -5
+jmp +73
+acc +7
+acc +22
+acc -15
+jmp +145
+nop -97
+acc +47
+acc +22
+jmp -110
+acc +44
+acc +4
+jmp -383
+acc +34
+jmp +1
+jmp +16
+nop -128
+acc +43
+jmp -34
+nop +95
+acc +3
+jmp +4
+acc +13
+acc -2
+jmp -90
+acc +39
+jmp +187
+acc +24
+acc +23
+acc +42
+jmp -11
+jmp -281
+jmp +1
+acc +25
+jmp -157
+acc +3
+acc -3
+nop -24
+acc -13
+jmp -46
+acc +10
+acc +16
+nop -7
+jmp -289
+nop -408
+acc -5
+acc +23
+nop +91
+jmp -234
+acc +0
+acc +4
+acc +15
+acc -15
+jmp -367
+acc +32
+acc -9
+acc +13
+jmp -194
+acc +38
+nop +126
+acc +1
+nop +124
+jmp -275
+acc -14
+acc +26
+jmp +55
+jmp -388
+acc +3
+acc +8
+acc +31
+acc +34
+jmp -372
+acc +45
+jmp -115
+acc -6
+acc +47
+acc -17
+acc +29
+jmp -438
+acc +33
+jmp -113
+jmp -301
+jmp -396
+acc +46
+jmp -284
+acc -14
+acc +11
+acc +20
+nop -356
+jmp -445
+acc +20
+acc -6
+acc -8
+jmp +134
+nop +54
+acc +33
+jmp +1
+acc +3
+jmp +108
+acc +14
+nop +67
+nop -66
+acc +45
+jmp +117
+acc +45
+acc +42
+acc +25
+acc -18
+jmp -354
+acc +8
+jmp -240
+nop -373
+acc -8
+jmp +72
+jmp -95
+jmp -350
+jmp -62
+acc +6
+acc -18
+jmp +108
+acc +14
+acc +11
+nop -164
+acc +4
+jmp +6
+acc +24
+acc +11
+acc -7
+acc +27
+jmp -171
+acc +23
+acc +36
+acc +20
+acc +42
+jmp -51
+acc +28
+acc +10
+jmp -218
+nop +63
+jmp -294
+acc -10
+nop +44
+jmp +43
+jmp -444
+acc +20
+acc +39
+acc +29
+jmp -507
+jmp -265
+jmp -471
+nop +17
+acc +39
+acc +4
+jmp -54
+acc +1
+nop -448
+acc -18
+acc +3
+jmp -495
+acc +17
+acc +16
+jmp +6
+acc +6
+acc +0
+jmp +1
+acc -15
+jmp -317
+jmp -77
+acc +4
+acc +30
+acc -3
+jmp -187
+acc -11
+nop -189
+nop -488
+jmp -140
+acc +50
+jmp -142
+nop -211
+jmp -166
+acc -12
+acc +7
+acc +32
+acc +40
+jmp -384
+jmp -186
+nop -261
+acc +32
+acc +19
+acc +44
+jmp +16
+acc +15
+acc +30
+nop -476
+acc +9
+jmp -299
+acc -17
+acc -17
+acc -4
+acc +44
+jmp -133
+jmp -58
+acc +21
+acc +4
+acc -19
+jmp -170
+acc +32
+acc -3
+jmp -363
+acc +48
+acc +9
+acc +48
+jmp +5
+acc +30
+acc +40
+jmp -450
+jmp -282
+jmp -388
+acc +12
+jmp -361
+acc -6
+jmp -237
+acc +27
+acc +16
+acc -19
+acc -5
+jmp -145
+acc +38
+jmp -565
+nop -341
+jmp +11
+acc +22
+nop -219
+jmp -597
+acc +33
+jmp -572
+jmp -292
+acc +7
+acc -14
+acc +33
+jmp -432
+acc +47
+jmp -41
+nop -306
+jmp -85
+jmp +1
+nop -215
+acc +30
+acc +9
+jmp -71
+acc +42
+acc +49
+jmp -553
+acc +28
+acc +43
+jmp +1
+jmp -147
+acc +44
+acc +26
+nop -176
+jmp -582
+acc +7
+acc -14
+acc +16
+acc +34
+jmp +1
\ No newline at end of file
diff --git a/src/2020/day8/part1.ts b/src/2020/day8/part1.ts
new file mode 100644
index 0000000..7c986e2
--- /dev/null
+++ b/src/2020/day8/part1.ts
@@ -0,0 +1,26 @@
+export const part1 = (input: string) => {
+  const instructions = input.split('\n');
+
+  let accumulator = 0;
+  let stackPointer = 0;
+
+  while (stackPointer <= instructions.length) {
+    const instruction = instructions[stackPointer];
+
+    if (instruction === 'EXECUTED') break;
+    instructions[stackPointer] = 'EXECUTED';
+
+    const [operation, argument] = instruction.split(' ');
+
+    if (operation === 'acc') {
+      accumulator += parseInt(argument);
+      stackPointer++;
+    } else if (operation === 'jmp') {
+      stackPointer += parseInt(argument);
+    } else if (operation === 'nop') {
+      stackPointer++;
+    }
+  }
+
+  return accumulator;
+};
diff --git a/src/2020/day8/part2.ts b/src/2020/day8/part2.ts
new file mode 100644
index 0000000..9884ffe
--- /dev/null
+++ b/src/2020/day8/part2.ts
@@ -0,0 +1,38 @@
+const runProgram = (program: string[]): number | null => {
+  let accumulator = 0;
+  let stackPointer = 0;
+
+  while (stackPointer < program.length) {
+    const instruction = program[stackPointer];
+    if (instruction === 'EXECUTED') return null; // Loop detected
+
+    const [op, arg] = instruction.split(' ');
+    program[stackPointer] = 'EXECUTED';
+
+    if (op === 'acc') {
+      accumulator += parseInt(arg);
+      stackPointer++;
+    } else if (op === 'jmp') {
+      stackPointer += parseInt(arg);
+    } else if (op === 'nop') {
+      stackPointer++;
+    }
+  }
+
+  return accumulator; // program terminated;
+};
+
+export const part2 = (input: string) => {
+  const instructions = input.split('\n');
+
+  for (let i = 0; i < instructions.length - 1; i++) {
+    const [op, arg] = instructions[i].split(' ');
+    if (op !== 'acc') {
+      // Swap jmp and nop and run new program
+      const newProgram = [...instructions];
+      newProgram[i] = op === 'jmp' ? `nop ${arg}` : `jmp ${arg}`;
+      const result = runProgram(newProgram);
+      if (result) return result;
+    }
+  }
+};
diff --git a/src/2020/day8/test.spec.ts b/src/2020/day8/test.spec.ts
new file mode 100644
index 0000000..90747e5
--- /dev/null
+++ b/src/2020/day8/test.spec.ts
@@ -0,0 +1,41 @@
+import {readInput} from '../../utils';
+
+import {part1} from './part1';
+import {part2} from './part2';
+
+describe('Advent of Code 2020 - Day 8', () => {
+  let input: string;
+  const testInput = `nop +0
+acc +1
+jmp +4
+acc +3
+jmp -3
+acc -99
+acc +1
+jmp -4
+acc +6`;
+
+  beforeAll(async () => {
+    input = await readInput(__dirname + '/input');
+  });
+
+  describe('part 1', () => {
+    it('should output 5 of test input ', () => {
+      expect(part1(testInput)).toBe(5);
+    });
+
+    it('should output 1548 from input', () => {
+      expect(part1(input)).toBe(1548);
+    });
+  });
+  describe('part 2', () => {
+    it('should output 8 of test input ', () => {
+      expect(part2(testInput)).toBe(8);
+    });
+
+    it('should output 1375 from input', () => {
+      const output = part2(input);
+      expect(part2(input)).toBe(1375);
+    });
+  });
+});