diff --git a/modules/merquryfk/katcomp/main.nf b/modules/merquryfk/katcomp/main.nf
new file mode 100644
index 00000000..cba98edf
--- /dev/null
+++ b/modules/merquryfk/katcomp/main.nf
@@ -0,0 +1,45 @@
+process MERQURYFK_KATCOMP {
+    tag "$meta.id"
+    label 'process_medium'
+
+    if (params.enable_conda) {
+        error "Conda environments cannot be used when using the FastK tool. Please use docker or singularity containers."
+    }
+    container 'ghcr.io/nbisweden/fastk_genescopefk_merquryfk:1.0'
+
+    input:
+    tuple val(meta), path(fastk1_hist), path(fastk1_ktab), path(fastk2_hist), path(fastk2_ktab)
+
+    output:
+    tuple val(meta), path("*.fi.png"), emit: filled_png , optional: true
+    tuple val(meta), path("*.ln.png"), emit: line_png   , optional: true
+    tuple val(meta), path("*.st.png"), emit: stacked_png, optional: true
+    tuple val(meta), path("*.fi.pdf"), emit: filled_pdf , optional: true
+    tuple val(meta), path("*.ln.pdf"), emit: line_pdf   , optional: true
+    tuple val(meta), path("*.st.pdf"), emit: stacked_pdf, optional: true
+    path "versions.yml"              , emit: versions
+
+    when:
+    task.ext.when == null || task.ext.when
+
+    script:
+    def args = task.ext.args ?: ''
+    def prefix = task.ext.prefix ?: "${meta.id}"
+    def FASTK_VERSION = 'f18a4e6d2207539f7b84461daebc54530a9559b0'
+    def MERQURY_VERSION = '8f3ab706e4cf4d7b7d1dfe5739859e3ebd26c494'
+    """
+    KatComp \\
+        $args \\
+        -T$task.cpus \\
+        ${fastk1_ktab.find{ it.toString().endsWith(".ktab") }} \\
+        ${fastk2_ktab.find{ it.toString().endsWith(".ktab") }} \\
+        $prefix
+
+    cat <<-END_VERSIONS > versions.yml
+    "${task.process}":
+        fastk: $FASTK_VERSION
+        merquryfk: $MERQURY_VERSION
+        r: \$( R --version | sed '1!d; s/.*version //; s/ .*//' )
+    END_VERSIONS
+    """
+}
diff --git a/modules/merquryfk/katcomp/meta.yml b/modules/merquryfk/katcomp/meta.yml
new file mode 100644
index 00000000..8518ea55
--- /dev/null
+++ b/modules/merquryfk/katcomp/meta.yml
@@ -0,0 +1,75 @@
+name: "merquryfk_katcomp"
+description: A reimplemenation of Kat Comp to work with FastK databases
+keywords:
+  - fastk
+  - k-mer
+  - compare
+tools:
+  - "merquryfk":
+      description: "FastK based version of Merqury"
+      homepage: "https://github.com/thegenemyers/MERQURY.FK"
+      documentation: ""
+      tool_dev_url: "https://github.com/thegenemyers/MERQURY.FK"
+      doi: ""
+      licence: "https://github.com/thegenemyers/MERQURY.FK/blob/main/LICENSE"
+
+input:
+  - meta:
+      type: map
+      description: |
+        Groovy Map containing sample information
+        e.g. [ id:'test', single_end:false ]
+  - fastk1_hist:
+      type: file
+      description: A histogram files from the program FastK
+      pattern: "*.hist"
+  - fastk1_ktab:
+      type: file
+      description: Histogram ktab files from the program FastK (option -t)
+      pattern: "*.ktab*"
+  - fastk2_hist:
+      type: file
+      description: A histogram files from the program FastK
+      pattern: "*.hist"
+  - fastk2_ktab:
+      type: file
+      description: Histogram ktab files from the program FastK (option -t)
+      pattern: "*.ktab*"
+
+output:
+  - meta:
+      type: map
+      description: |
+        Groovy Map containing sample information
+        e.g. [ id:'test', single_end:false ]
+  - versions:
+      type: file
+      description: File containing software versions
+      pattern: "versions.yml"
+  - filled_png:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in filled PNG format.
+      pattern: "*.fi.png"
+  - line_png:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in line PNG format.
+      pattern: "*.ln.png"
+  - stacked_png:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in stacked PNG format.
+      pattern: "*.st.png"
+  - filled_pdf:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in filled PDF format.
+      pattern: "*.fi.pdf"
+  - line_pdf:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in line PDF format.
+      pattern: "*.ln.pdf"
+  - stacked_pdf:
+      type: file
+      description: Comparison of Kmers between sample 1 and 2 in stacked PDF format.
+      pattern: "*.st.pdf"
+
+authors:
+  - "@mahesh-panchal"
diff --git a/tests/config/pytest_modules.yml b/tests/config/pytest_modules.yml
index f4d32f8c..6bd5b230 100644
--- a/tests/config/pytest_modules.yml
+++ b/tests/config/pytest_modules.yml
@@ -1342,6 +1342,10 @@ meningotype:
   - modules/meningotype/**
   - tests/modules/meningotype/**
 
+merquryfk/katcomp:
+  - modules/merquryfk/katcomp/**
+  - tests/modules/merquryfk/katcomp/**
+
 merquryfk/merquryfk:
   - modules/merquryfk/merquryfk/**
   - tests/modules/merquryfk/merquryfk/**
diff --git a/tests/modules/merquryfk/katcomp/main.nf b/tests/modules/merquryfk/katcomp/main.nf
new file mode 100644
index 00000000..74d9a3ea
--- /dev/null
+++ b/tests/modules/merquryfk/katcomp/main.nf
@@ -0,0 +1,41 @@
+#!/usr/bin/env nextflow
+
+nextflow.enable.dsl = 2
+
+include { FASTK_FASTK as FASTK1 } from '../../../../modules/fastk/fastk/main.nf'
+include { FASTK_FASTK as FASTK2 } from '../../../../modules/fastk/fastk/main.nf'
+include { MERQURYFK_KATCOMP } from '../../../../modules/merquryfk/katcomp/main.nf'
+
+workflow test_merquryfk_katcomp_png {
+
+    input = [
+        [ id:'test', single_end:true ], // meta map
+        file(params.test_data['homo_sapiens']['illumina']['test_1_fastq_gz'], checkIfExists: true)
+    ]
+
+    FASTK1 ( input )
+    FASTK2 ( input )
+    MERQURYFK_KATCOMP (
+        FASTK1.out.hist
+            .join( FASTK1.out.ktab )
+            .join( FASTK2.out.hist )
+            .join( FASTK2.out.ktab )
+    )
+}
+
+workflow test_merquryfk_katcomp_pdf {
+
+    input = [
+        [ id:'test', single_end:true ], // meta map
+        file(params.test_data['homo_sapiens']['illumina']['test_1_fastq_gz'], checkIfExists: true)
+    ]
+
+    FASTK1 ( input )
+    FASTK2 ( input )
+    MERQURYFK_KATCOMP (
+        FASTK1.out.hist
+            .join( FASTK1.out.ktab )
+            .join( FASTK2.out.hist )
+            .join( FASTK2.out.ktab )
+    )
+}
diff --git a/tests/modules/merquryfk/katcomp/nextflow.config b/tests/modules/merquryfk/katcomp/nextflow.config
new file mode 100644
index 00000000..02629e80
--- /dev/null
+++ b/tests/modules/merquryfk/katcomp/nextflow.config
@@ -0,0 +1,19 @@
+process {
+
+    publishDir = { "${params.outdir}/${task.process.tokenize(':')[-1].tokenize('_')[0].toLowerCase()}" }
+
+    withName: 'FASTK.*' {
+        ext.args   = '-t'
+        publishDir = [ enabled: false ]
+    }
+    withName: 'FASTK1' {
+        ext.prefix = { "${meta.id}_sampleA" }
+    }
+    withName: 'FASTK2' {
+        ext.prefix = { "${meta.id}_sampleB" }
+    }
+    withName: 'test_merquryfk_katcomp_pdf:MERQURYFK_KATCOMP' {
+        ext.args   = '-pdf'
+    }
+
+}
diff --git a/tests/modules/merquryfk/katcomp/test.yml b/tests/modules/merquryfk/katcomp/test.yml
new file mode 100644
index 00000000..18a35462
--- /dev/null
+++ b/tests/modules/merquryfk/katcomp/test.yml
@@ -0,0 +1,22 @@
+- name: merquryfk katcomp test_merquryfk_katcomp_png
+  command: nextflow run ./tests/modules/merquryfk/katcomp -entry test_merquryfk_katcomp_png -c ./tests/config/nextflow.config  -c ./tests/modules/merquryfk/katcomp/nextflow.config
+  tags:
+    - merquryfk
+    - merquryfk/katcomp
+  files:
+    - path: output/merquryfk/test.fi.png
+      md5sum: 83b30d2f6103190887e66d3690c63d55
+    - path: output/merquryfk/test.ln.png
+      md5sum: 6d223a9b91937b1f984e3415fd1580bb
+    - path: output/merquryfk/test.st.png
+      md5sum: 00a851c8f1c7f2f5b8bb57c6f07b161c
+
+- name: merquryfk katcomp test_merquryfk_katcomp_pdf
+  command: nextflow run ./tests/modules/merquryfk/katcomp -entry test_merquryfk_katcomp_pdf -c ./tests/config/nextflow.config  -c ./tests/modules/merquryfk/katcomp/nextflow.config
+  tags:
+    - merquryfk
+    - merquryfk/katcomp
+  files:
+    - path: output/merquryfk/test.fi.pdf
+    - path: output/merquryfk/test.ln.pdf
+    - path: output/merquryfk/test.st.pdf