diff --git a/auditbeat/module/file_integrity/eventreader_test.go b/auditbeat/module/file_integrity/eventreader_test.go
index a00367f350a..53db8b28c3e 100644
--- a/auditbeat/module/file_integrity/eventreader_test.go
+++ b/auditbeat/module/file_integrity/eventreader_test.go
@@ -41,7 +41,7 @@ func init() {
 const ErrorSharingViolation syscall.Errno = 32
 
 func TestEventReader(t *testing.T) {
-	t.Skip("Flaky test: about 1/10 of bulds fails https://github.com/elastic/beats/issues/21302")
+	t.Skip("Flaky test: about 1/10 of builds fails https://github.com/elastic/beats/issues/21302")
 	// Make dir to monitor.
 	dir, err := ioutil.TempDir("", "audit")
 	if err != nil {
@@ -241,7 +241,7 @@ func TestEventReader(t *testing.T) {
 }
 
 func TestRaces(t *testing.T) {
-	t.Skip("Flaky test: about 1/20 of bulds fails https://github.com/elastic/beats/issues/21303")
+	t.Skip("Flaky test: about 1/20 of builds fails https://github.com/elastic/beats/issues/21303")
 	const (
 		fileMode os.FileMode = 0640
 		N                    = 100
diff --git a/auditbeat/module/file_integrity/fileinfo_windows.go b/auditbeat/module/file_integrity/fileinfo_windows.go
index 4c3e8f1f357..0766e61ae3f 100644
--- a/auditbeat/module/file_integrity/fileinfo_windows.go
+++ b/auditbeat/module/file_integrity/fileinfo_windows.go
@@ -94,7 +94,7 @@ func fileOwner(path string) (sid, owner string, err error) {
 	}
 	defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(securityDescriptor)))
 
-	// Covert SID to a string and lookup the username.
+	// Convert SID to a string and lookup the username.
 	var errs multierror.Errors
 	sid, err = securityID.String()
 	if err != nil {
diff --git a/dev-tools/ecs-migration.yml b/dev-tools/ecs-migration.yml
index 6d8cea78a21..cb4b9d8b8d7 100644
--- a/dev-tools/ecs-migration.yml
+++ b/dev-tools/ecs-migration.yml
@@ -2022,7 +2022,7 @@
 - from: method
   to: http.request.method
   alias: false
-  comment: Field is used by serveral protocols.
+  comment: Field is used by several protocols.
   beat: packetbeat
 
 - from: path
@@ -2033,7 +2033,7 @@
 - from: real_ip
   to: network.forwarded_ip
   alias: false
-  comment: Field is used by serveral protocols.
+  comment: Field is used by several protocols.
   beat: packetbeat
 
 ## MySQL
@@ -2041,7 +2041,7 @@
   to: status
   alias: false
   comment: >
-    Status reflects whether or not an error occured. Its values are either
+    Status reflects whether or not an error occurred. Its values are either
     OK or Error.
   beat: packetbeat
 
diff --git a/dev-tools/jenkins_release.sh b/dev-tools/jenkins_release.sh
index cd22480c7e3..02950637610 100755
--- a/dev-tools/jenkins_release.sh
+++ b/dev-tools/jenkins_release.sh
@@ -45,7 +45,7 @@ cleanup() {
 trap cleanup EXIT
 
 # This controls the defaults used the Jenkins package job. They can be
-# overridden by setting them in the environement prior to running this script.
+# overridden by setting them in the environment prior to running this script.
 export SNAPSHOT="${SNAPSHOT:-true}"
 export PLATFORMS="${PLATFORMS:-+linux/armv7 +linux/ppc64le +linux/s390x +linux/mips64}"
 
diff --git a/dev-tools/mage/gotest_test.go b/dev-tools/mage/gotest_test.go
index f88186a1910..b3689c8ff31 100644
--- a/dev-tools/mage/gotest_test.go
+++ b/dev-tools/mage/gotest_test.go
@@ -139,7 +139,7 @@ func TestGoTest_CaptureOutput(t *testing.T) {
 
 			output := buf.String()
 			if !re.MatchString(output) {
-				t.Fatalf("GoTest output missmatch:\nwant:\n%v\n\ngot:\n%v", test.want, output)
+				t.Fatalf("GoTest output mismatch:\nwant:\n%v\n\ngot:\n%v", test.want, output)
 			}
 		})
 	}
diff --git a/dev-tools/mage/integtest.go b/dev-tools/mage/integtest.go
index 16321fa9032..f36189c1b8e 100644
--- a/dev-tools/mage/integtest.go
+++ b/dev-tools/mage/integtest.go
@@ -135,7 +135,7 @@ type IntegrationTester interface {
 	Use(dir string) (bool, error)
 	// HasRequirements returns an error if requirements are missing.
 	HasRequirements() error
-	// Test performs excecuting the test inside the environment.
+	// Test performs executing the test inside the environment.
 	Test(dir string, mageTarget string, env map[string]string) error
 	// InsideTest performs the actual test on the inside of environment.
 	InsideTest(test func() error) error
diff --git a/dev-tools/mage/kubernetes/kubectl.go b/dev-tools/mage/kubernetes/kubectl.go
index f69edcc4010..4cc757a6905 100644
--- a/dev-tools/mage/kubernetes/kubectl.go
+++ b/dev-tools/mage/kubernetes/kubectl.go
@@ -28,7 +28,7 @@ import (
 	"github.com/magefile/mage/sh"
 )
 
-// KubectlApply applys the manifest file to the kubernetes cluster.
+// KubectlApply applies the manifest file to the kubernetes cluster.
 //
 // KUBECONFIG must be in `env` to target a specific cluster.
 func KubectlApply(env map[string]string, stdout, stderr io.Writer, filepath string) error {
@@ -60,7 +60,7 @@ func KubectlDelete(env map[string]string, stdout, stderr io.Writer, filepath str
 	return err
 }
 
-// KubectlApplyInput applys the manifest string to the kubernetes cluster.
+// KubectlApplyInput applies the manifest string to the kubernetes cluster.
 //
 // KUBECONFIG must be in `env` to target a specific cluster.
 func KubectlApplyInput(env map[string]string, stdout, stderr io.Writer, manifest string) error {