diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index c39aff4..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,174 +0,0 @@
-version: 2.1
-
-executors:
-    golang:
-        parameters:
-            version:
-                type: string
-        docker:
-            - image: circleci/golang:<< parameters.version >>
-
-commands:
-    get_deps:
-        description: "Get go dependencies"
-        steps:
-            - run: go get github.com/jstemmer/go-junit-report
-
-    run_test:
-        description: "Run unit tests for a go module"
-        parameters:
-            test_name:
-                type: string
-            module:
-                type: string
-            coverage:
-                default: false
-                type: boolean
-            allow_fail:
-                type: boolean
-                default: false
-        steps:
-            - run:
-                name: "Run tests for <<parameters.test_name>>"
-                command: |
-                    TEST_DIR="/tmp/test-results/<<parameters.test_name>>"
-                    mkdir -p ${TEST_DIR}
-                    trap "go-junit-report </tmp/test-results/go-test.out > ${TEST_DIR}/go-test-report.xml" EXIT
-                    go test <<parameters.module>> -race -v \
-                        <<# parameters.coverage >>-coverprofile=/tmp/workspace/coverage.txt -covermode=atomic<</ parameters.coverage >> \
-                        | tee /tmp/test-results/go-test.out <<# parameters.allow_fail >>|| true<</ parameters.allow_fail >>
-
-jobs:
-    go:
-        parameters:
-            version:
-                type: string
-            allow_fail:
-                type: boolean
-                default: false
-        executor:
-            name: golang
-            version: "<<parameters.version>>"
-        working_directory: /go/src/github.com/pelletier/go-toml
-        environment:
-          GO111MODULE: "on"
-        steps:
-            - checkout
-            - run: mkdir -p /tmp/workspace
-            - run: go fmt ./... <<# parameters.allow_fail >>|| true<</ parameters.allow_fail >>
-            - get_deps
-            - run_test:
-                test_name: "go-toml"
-                module: "github.com/pelletier/go-toml"
-                coverage: true
-                allow_fail: <<parameters.allow_fail>>
-            - run_test:
-                test_name: "tomljson"
-                module: "github.com/pelletier/go-toml/cmd/tomljson"
-                allow_fail: <<parameters.allow_fail>>
-            - run_test:
-                test_name: "jsontoml"
-                module: "github.com/pelletier/go-toml/cmd/jsontoml"
-                allow_fail: <<parameters.allow_fail>>
-            - run_test:
-                test_name: "tomll"
-                module: "github.com/pelletier/go-toml/cmd/tomll"
-                allow_fail: <<parameters.allow_fail>>
-            - run_test:
-                test_name: "query"
-                module: "github.com/pelletier/go-toml/query"
-                allow_fail: <<parameters.allow_fail>>
-            - store_test_results:
-                path: /tmp/test-results
-    codecov:
-        docker:
-            - image: "circleci/golang:1.12"
-        steps:
-            - attach_workspace:
-                at: /tmp/workspace
-            - run:
-                name: "upload to codecov"
-                working_directory: /tmp/workspace
-                command: |
-                    curl https://codecov.io/bash > codecov.sh
-                    bash codecov.sh -v
-    docker:
-        docker:
-            - image: "circleci/golang:1.12"
-        steps:
-            - checkout
-            - setup_remote_docker:
-                  docker_layer_caching: true
-            - run: docker build -t pelletier/go-toml:$CIRCLE_SHA1 .
-            - run:
-                name: "Publish docker image"
-                command: |
-                    if [ "${CIRCLE_PR_REPONAME}" == "" ]; then
-                      IMAGE_NAME="pelletier/go-toml"
-                      IMAGE_SHA_TAG="${IMAGE_NAME}:$CIRCLE_SHA1"
-                      if [ "${CIRCLE_BRANCH}" = "master" ]; then
-                          docker login -u $DOCKER_USER -p $DOCKER_PASS
-                          docker tag ${IMAGE_SHA_TAG} ${IMAGE_NAME}:latest
-                          docker push ${IMAGE_NAME}:latest
-                      fi
-                      if [ "${CIRCLE_TAG}" != "" ]; then
-                          docker login -u $DOCKER_USER -p $DOCKER_PASS
-                          docker tag ${IMAGE_SHA_TAG} ${IMAGE_NAME}:${CIRCLE_TAG}
-                          docker push ${IMAGE_NAME}:${CIRCLE_TAG}
-                      fi
-                    else
-                      echo "not pushing docker image for forked repo"
-                    fi
-
-workflows:
-    version: 2.1
-    build:
-        jobs:
-            - go:
-                name: "go1_11"
-                version: "1.11"
-            - go:
-                name: "go1_12"
-                version: "1.12"
-                post-steps:
-                    - run: go tool cover -html=/tmp/workspace/coverage.txt -o coverage.html
-                    - store_artifacts:
-                        path: /tmp/workspace/coverage.txt
-                    - store_artifacts:
-                        path: coverage.html
-                    - persist_to_workspace:
-                        root: /tmp/workspace
-                        paths:
-                            - coverage.txt
-            - go:
-                name: "gotip"
-                version: "1.12" # use as base
-                allow_fail: true
-                pre-steps:
-                    - restore_cache:
-                        keys:
-                            - go-tip-source
-                    - run:
-                        name: "Compile go tip"
-                        command: |
-                            if [ ! -d "/tmp/go" ]; then
-                                git clone https://go.googlesource.com/go /tmp/go
-                            fi
-                            cd /tmp/go
-                            git checkout master
-                            git pull
-                            cd src
-                            ./make.bash
-                            echo 'export PATH="/tmp/go/bin:$PATH"' >> $BASH_ENV
-                    - run: go version
-                    - save_cache:
-                        key: go-tip-source
-                        paths:
-                            - "/tmp/go"
-            - codecov:
-                requires:
-                    - go1_11
-                    - go1_12
-            - docker:
-                requires:
-                    - codecov
diff --git a/.github/workflows/fuzzit.yml b/.github/workflows/fuzzit.yml
new file mode 100644
index 0000000..d2e297c
--- /dev/null
+++ b/.github/workflows/fuzzit.yml
@@ -0,0 +1,17 @@
+name: Fuzzit
+on:
+  push:
+    branches:
+      - master
+jobs:
+  fuzzing:
+    name: Run fuzzing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-go@v1
+        with:
+          go-version: '1.13'
+      - uses: actions/checkout@v1
+      - run: ./fuzzit.sh
+        env:
+          TYPE: fuzzing
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
new file mode 100644
index 0000000..c62a517
--- /dev/null
+++ b/.github/workflows/go.yml
@@ -0,0 +1,80 @@
+name: Go
+on: [push]
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        go: ['1.12', '1.13']
+    runs-on: ${{ matrix.os }}
+    name: Test Go ${{ matrix.go }} on ${{ matrix.os }}
+    steps:
+      - uses: pelletier/setup-go@v1.0.2-patch
+        with:
+          go-version: ${{ matrix.go }}
+      - uses: actions/checkout@v1
+      - run: go test ./...
+
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: pelletier/setup-go@v1.0.2-patch
+        with:
+          go-version: '1.12'
+      - uses: actions/checkout@v1
+      - run: go test -race -coverprofile=coverage.txt -covermode=atomic
+      - run: bash <(curl -s https://codecov.io/bash)
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  fmt:
+    name: Go fmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: pelletier/setup-go@v1.0.2-patch
+      - uses: actions/checkout@v1
+      - run: go fmt ./...
+
+  benchmark:
+    name: Run benchmark
+    runs-on: ubuntu-latest
+    steps:
+      - uses: pelletier/setup-go@v1.0.2-patch
+        with:
+          go-version: '1.13'
+      - uses: actions/checkout@v1
+      - run: ./benchmark.sh master https://github.com/$GITHUB_REPOSITORY.git
+
+  fuzzing:
+    name: Run fuzzing
+    runs-on: ubuntu-latest
+    steps:
+      - uses: pelletier/setup-go@v1.0.2-patch
+        with:
+          go-version: '1.13'
+      - uses: actions/checkout@v1
+      - run: mkdir -p /home/runner/go/src/github.com/pelletier/go-toml
+          | cp -R . /home/runner/go/src/github.com/pelletier/go-toml
+      - run: ./fuzzit.sh
+        env:
+          TYPE: local-regression
+
+  docker:
+    name: Build Docker image
+    runs-on: ubuntu-latest
+    needs: [test, fuzzing, fmt]
+    steps:
+      - uses: actions/setup-go@v1
+        with:
+          go-version: '1.13'
+      - uses: actions/checkout@v1
+      - run: docker build -t toml .
+      - uses: actions/docker/tag@master
+        with:
+          args: toml pelletier/go-toml
+      - run: docker tag pelletier/go-toml pelletier/go-toml:latest
+        if: github.ref == 'heads/refs/master'
+      - name: Docker login
+        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u "${{ secrets.DOCKER_USERNAME }}" --password-stdin
+      - run: docker push pelletier/go-toml
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index ae0f7ef..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-dist: bionic
-language: go
-services:
-  - docker
-
-matrix:
-  allow_failures:
-    - go: tip
-  fast_finish: true
-  include:
-    - go: 1.11.x
-    - go: 1.12.x
-      env: WITH_FUZZ=true
-    - go: tip
-env:
-  - GO111MODULE=on
-  - secure: "hhoCl77LhP25e+dLzmKphjdj+ep6jRfqON1JoxdvRXYjQqmhtxWSTJFqPyMLz2fNGSN8HUcyZZKTrOG6HkrapiIR5kjrnvm6Fzjp+IfClPoPu8xQUIbKd8E3BrDwvvF1JkkLImozxZbrbJhksJqN+QgG/Lv2vs6wkAfQjvGcRTQ="
-script:
-  - if [ -n "$(go fmt ./...)" ]; then exit 1; fi
-  - go test github.com/pelletier/go-toml -race -coverprofile=coverage.txt -covermode=atomic
-  - go test github.com/pelletier/go-toml/cmd/tomljson
-  - go test github.com/pelletier/go-toml/cmd/jsontoml
-  - go test github.com/pelletier/go-toml/cmd/tomll
-  - go test github.com/pelletier/go-toml/query
-  - ./benchmark.sh $TRAVIS_BRANCH https://github.com/$TRAVIS_REPO_SLUG.git
-  - ./fuzzit.sh
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index d158ba5..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-version: "{build}"
-
-# Source Config
-clone_folder: c:\gopath\src\github.com\pelletier\go-toml
-
-# Build host
-environment:
-  GOPATH: c:\gopath
-  DEPTESTBYPASS501: 1
-  GOVERSION: 1.12
-  GO111MODULE: on
-
-init:
-  - git config --global core.autocrlf input
-
-# Build
-install:
-  # Install the specific Go version.
-  - rmdir c:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go%GOVERSION%.windows-amd64.msi
-  - msiexec /i go%GOVERSION%.windows-amd64.msi /q
-  - choco install bzr
-  - set Path=c:\go\bin;c:\gopath\bin;C:\Program Files (x86)\Bazaar\;C:\Program Files\Mercurial\%Path%
-  - go version
-  - go env
-
-build: false
-deploy: false
-
-test_script:
-  - go test github.com/pelletier/go-toml
-  - go test github.com/pelletier/go-toml/cmd/tomljson
-  - go test github.com/pelletier/go-toml/cmd/jsontoml
-  - go test github.com/pelletier/go-toml/cmd/tomll
-  - go test github.com/pelletier/go-toml/query
diff --git a/benchmark.sh b/benchmark.sh
index 8b8bb52..8300bd3 100755
--- a/benchmark.sh
+++ b/benchmark.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-set -e
+set -ex
 
 reference_ref=${1:-master}
 reference_git=${2:-.}
@@ -29,4 +29,4 @@ go test -bench=. -benchmem  | tee ${local_benchmark}
 
 echo ""
 echo "=== diff"
-benchstat -delta-test=none ${ref_benchmark} ${local_benchmark}
\ No newline at end of file
+benchstat -delta-test=none ${ref_benchmark} ${local_benchmark}
diff --git a/cmd/jsontoml/main.go b/cmd/jsontoml/main.go
index 153ad16..0acc61e 100644
--- a/cmd/jsontoml/main.go
+++ b/cmd/jsontoml/main.go
@@ -37,6 +37,7 @@ func processMain(files []string, defaultInput io.Reader, output io.Writer, error
 		file, err := os.Open(files[0])
 		if err != nil {
 			printError(err, errorOutput)
+			return -1
 		}
 		inputReader = file
 		defer file.Close()
@@ -60,9 +61,9 @@ func reader(r io.Reader) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	error := json.Unmarshal(jsonBytes, &jsonMap)
-	if error != nil {
-		return "", error
+	err = json.Unmarshal(jsonBytes, &jsonMap)
+	if err != nil {
+		return "", err
 	}
 
 	tree, err := toml.TreeFromMap(jsonMap)
diff --git a/cmd/jsontoml/main_test.go b/cmd/jsontoml/main_test.go
index d5229de..c591c66 100644
--- a/cmd/jsontoml/main_test.go
+++ b/cmd/jsontoml/main_test.go
@@ -85,7 +85,6 @@ func TestProcessMainReadFromMissingFile(t *testing.T) {
 `
 	} else {
 		expectedError = `open /this/file/does/not/exist: no such file or directory
-invalid argument
 `
 	}
 
diff --git a/fuzzit.sh b/fuzzit.sh
index 035ff95..05d141e 100755
--- a/fuzzit.sh
+++ b/fuzzit.sh
@@ -1,12 +1,6 @@
 #!/bin/bash
 set -xe
 
-# fuzz only in one configuration
-# there's no benefit to fuzzing with different go versions
-if [ -z ${WITH_FUZZ} ]; then
-    exit 0
-fi
-
 # go-fuzz doesn't support modules yet, so ensure we do everything
 # in the old style GOPATH way
 export GO111MODULE="off"
@@ -28,13 +22,5 @@ clang -fsanitize=fuzzer ${TARGET}.a -o ${TARGET}
 wget -q -O fuzzit https://github.com/fuzzitdev/fuzzit/releases/download/v2.4.23/fuzzit_Linux_x86_64
 chmod a+x fuzzit
 
-# upload fuzz target for long fuzz testing on fuzzit.dev server
-# or run locally for regression, depending on --type
-if [ "${TRAVIS_PULL_REQUEST}" == "false" ]; then
-	TYPE=fuzzing
-else
-	TYPE=local-regression
-fi
-
 # TODO: change kkowalczyk to go-toml and create toml-fuzzer target there
 ./fuzzit create job --type $TYPE go-toml/${TARGET} ${TARGET}
diff --git a/marshal_OrderPreserve_Map_test.toml b/marshal_OrderPreserve_Map_test.toml
deleted file mode 100644
index a3bd513..0000000
--- a/marshal_OrderPreserve_Map_test.toml
+++ /dev/null
@@ -1,17 +0,0 @@
-title = "TOML Marshal Testing"
-
-[basic_map]
-  one = "one"
-  two = "two"
-
-[long_map]
-  a7 = "1"
-  b3 = "2"
-  c8 = "3"
-  d4 = "4"
-  e6 = "5"
-  f5 = "6"
-  g10 = "7"
-  h1 = "8"
-  i2 = "9"
-  j9 = "10"
diff --git a/marshal_test.go b/marshal_test.go
index c33e748..107587e 100644
--- a/marshal_test.go
+++ b/marshal_test.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"os"
 	"reflect"
 	"strings"
 	"testing"
@@ -55,6 +56,107 @@ Ystrlist = ["Howdy","Hey There"]
   String2 = "Three"
 `)
 
+var marshalTestToml = []byte(`title = "TOML Marshal Testing"
+
+[basic]
+  bool = true
+  date = 1979-05-27T07:32:00Z
+  float = 123.4
+  float64 = 123.456782132399
+  int = 5000
+  string = "Bite me"
+  uint = 5001
+
+[basic_lists]
+  bools = [true,false,true]
+  dates = [1979-05-27T07:32:00Z,1980-05-27T07:32:00Z]
+  floats = [12.3,45.6,78.9]
+  ints = [8001,8001,8002]
+  strings = ["One","Two","Three"]
+  uints = [5002,5003]
+
+[basic_map]
+  one = "one"
+  two = "two"
+
+[subdoc]
+
+  [subdoc.first]
+    name = "First"
+
+  [subdoc.second]
+    name = "Second"
+
+[[subdoclist]]
+  name = "List.First"
+
+[[subdoclist]]
+  name = "List.Second"
+
+[[subdocptrs]]
+  name = "Second"
+`)
+
+var marshalOrderPreserveToml = []byte(`title = "TOML Marshal Testing"
+
+[basic_lists]
+  floats = [12.3,45.6,78.9]
+  bools = [true,false,true]
+  dates = [1979-05-27T07:32:00Z,1980-05-27T07:32:00Z]
+  ints = [8001,8001,8002]
+  uints = [5002,5003]
+  strings = ["One","Two","Three"]
+
+[[subdocptrs]]
+  name = "Second"
+
+[basic_map]
+  one = "one"
+  two = "two"
+
+[subdoc]
+
+  [subdoc.second]
+    name = "Second"
+
+  [subdoc.first]
+    name = "First"
+
+[basic]
+  uint = 5001
+  bool = true
+  float = 123.4
+  float64 = 123.456782132399
+  int = 5000
+  string = "Bite me"
+  date = 1979-05-27T07:32:00Z
+
+[[subdoclist]]
+  name = "List.First"
+
+[[subdoclist]]
+  name = "List.Second"
+`)
+
+var mashalOrderPreserveMapToml = []byte(`title = "TOML Marshal Testing"
+
+[basic_map]
+  one = "one"
+  two = "two"
+
+[long_map]
+  a7 = "1"
+  b3 = "2"
+  c8 = "3"
+  d4 = "4"
+  e6 = "5"
+  f5 = "6"
+  g10 = "7"
+  h1 = "8"
+  i2 = "9"
+  j9 = "10"
+`)
+
 func TestBasicMarshal(t *testing.T) {
 	result, err := Marshal(basicTestData)
 	if err != nil {
@@ -233,9 +335,8 @@ func TestDocMarshal(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	expected, _ := ioutil.ReadFile("marshal_test.toml")
-	if !bytes.Equal(result, expected) {
-		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", expected, result)
+	if !bytes.Equal(result, marshalTestToml) {
+		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", marshalTestToml, result)
 	}
 }
 
@@ -245,9 +346,8 @@ func TestDocMarshalOrdered(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	expected, _ := ioutil.ReadFile("marshal_OrderPreserve_test.toml")
-	if !bytes.Equal(result.Bytes(), expected) {
-		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", expected, result.Bytes())
+	if !bytes.Equal(result.Bytes(), marshalOrderPreserveToml) {
+		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", marshalOrderPreserveToml, result.Bytes())
 	}
 }
 
@@ -256,9 +356,8 @@ func TestDocMarshalMaps(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	expected, _ := ioutil.ReadFile("marshal_OrderPreserve_Map_test.toml")
-	if !bytes.Equal(result, expected) {
-		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", expected, result)
+	if !bytes.Equal(result, mashalOrderPreserveMapToml) {
+		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", mashalOrderPreserveMapToml, result)
 	}
 }
 
@@ -268,9 +367,8 @@ func TestDocMarshalOrderedMaps(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	expected, _ := ioutil.ReadFile("marshal_OrderPreserve_Map_test.toml")
-	if !bytes.Equal(result.Bytes(), expected) {
-		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", expected, result.Bytes())
+	if !bytes.Equal(result.Bytes(), mashalOrderPreserveMapToml) {
+		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", mashalOrderPreserveMapToml, result.Bytes())
 	}
 }
 
@@ -279,16 +377,15 @@ func TestDocMarshalPointer(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	expected, _ := ioutil.ReadFile("marshal_test.toml")
-	if !bytes.Equal(result, expected) {
-		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", expected, result)
+
+	if !bytes.Equal(result, marshalTestToml) {
+		t.Errorf("Bad marshal: expected\n-----\n%s\n-----\ngot\n-----\n%s\n-----\n", marshalTestToml, result)
 	}
 }
 
 func TestDocUnmarshal(t *testing.T) {
 	result := testDoc{}
-	tomlData, _ := ioutil.ReadFile("marshal_test.toml")
-	err := Unmarshal(tomlData, &result)
+	err := Unmarshal(marshalTestToml, &result)
 	expected := docData
 	if err != nil {
 		t.Fatal(err)
@@ -301,11 +398,22 @@ func TestDocUnmarshal(t *testing.T) {
 }
 
 func TestDocPartialUnmarshal(t *testing.T) {
-	result := testDocSubs{}
+	file, err := ioutil.TempFile("", "test-*.toml")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(file.Name())
 
-	tree, _ := LoadFile("marshal_test.toml")
+	err = ioutil.WriteFile(file.Name(), marshalTestToml, 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	tree, _ := LoadFile(file.Name())
 	subTree := tree.Get("subdoc").(*Tree)
-	err := subTree.Unmarshal(&result)
+
+	result := testDocSubs{}
+	err = subTree.Unmarshal(&result)
 	expected := docData.Subdocs
 	if err != nil {
 		t.Fatal(err)