diff --git a/src/components/FieldEnum.jsx b/src/components/FieldEnum.jsx
deleted file mode 100644
index f4268ece..00000000
--- a/src/components/FieldEnum.jsx
+++ /dev/null
@@ -1,20 +0,0 @@
-import React from 'react'
-import PropTypes from 'prop-types'
-import InputEnum from './InputEnum'
-import Block from './Block';
-import Fieldset from './Fieldset';
-
-
-export default class FieldEnum extends React.Component {
-  static propTypes = {
-    ...InputEnum.propTypes,
-  }
-
-  render() {
-    const {props} = this;
-
-    return <Fieldset label={props.label}>
-      <InputEnum {...props} />
-    </Fieldset>
-  }
-}
diff --git a/src/components/FieldEnum.tsx b/src/components/FieldEnum.tsx
new file mode 100644
index 00000000..054d3d3c
--- /dev/null
+++ b/src/components/FieldEnum.tsx
@@ -0,0 +1,17 @@
+import React from 'react'
+import InputEnum, {InputEnumProps} from './InputEnum'
+import Fieldset from './Fieldset';
+
+
+type FieldEnumProps = InputEnumProps & { label : string };
+
+
+export default class FieldEnum extends React.Component<FieldEnumProps> {
+  render() {
+    const {props} = this;
+
+    return <Fieldset label={props.label}>
+      <InputEnum {...props} />
+    </Fieldset>
+  }
+}
\ No newline at end of file
diff --git a/src/components/FieldId.jsx b/src/components/FieldId.tsx
similarity index 60%
rename from src/components/FieldId.jsx
rename to src/components/FieldId.tsx
index 1ce8cffc..a4dba616 100644
--- a/src/components/FieldId.jsx
+++ b/src/components/FieldId.tsx
@@ -1,18 +1,17 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 
 import {latest} from '@maplibre/maplibre-gl-style-spec'
 import Block from './Block'
 import InputString from './InputString'
 
-export default class FieldId extends React.Component {
-  static propTypes = {
-    value: PropTypes.string.isRequired,
-    wdKey: PropTypes.string.isRequired,
-    onChange: PropTypes.func.isRequired,
-    error: PropTypes.object,
-  }
+type FieldIdProps = {
+  value: string
+  wdKey: string
+  onChange(...args: unknown[]): unknown
+  error?: unknown[]
+};
 
+export default class FieldId extends React.Component<FieldIdProps> {
   render() {
     return <Block label={"ID"} fieldSpec={latest.layer.id}
       data-wd-key={this.props.wdKey}
diff --git a/src/components/InputArray.jsx b/src/components/InputArray.tsx
similarity index 67%
rename from src/components/InputArray.jsx
rename to src/components/InputArray.tsx
index 885688ff..a0963ca1 100644
--- a/src/components/InputArray.jsx
+++ b/src/components/InputArray.tsx
@@ -1,24 +1,29 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import InputString from './InputString'
 import InputNumber from './InputNumber'
 
-export default class FieldArray extends React.Component {
-  static propTypes = {
-    value: PropTypes.array,
-    type: PropTypes.string,
-    length: PropTypes.number,
-    default: PropTypes.array,
-    onChange: PropTypes.func,
-    'aria-label': PropTypes.string,
-  }
+type FieldArrayProps = {
+  value: string[]
+  type?: string
+  length?: number
+  default?: string[] | number[]
+  onChange?(...args: unknown[]): unknown
+  'aria-label'?: string
+  label?: string
+};
 
+type FieldArrayState = {
+  value: string[] | number[]
+  initialPropsValue: unknown[]
+}
+
+export default class FieldArray extends React.Component<FieldArrayProps, FieldArrayState> {
   static defaultProps = {
     value: [],
     default: [],
   }
 
-  constructor (props) {
+  constructor (props: FieldArrayProps) {
     super(props);
     this.state = {
       value: this.props.value.slice(0),
@@ -27,8 +32,8 @@ export default class FieldArray extends React.Component {
     };
   }
 
-  static getDerivedStateFromProps(props, state) {
-    const value = [];
+  static getDerivedStateFromProps(props: FieldArrayProps, state: FieldArrayState) {
+    const value: any[] = [];
     const initialPropsValue = state.initialPropsValue.slice(0);
 
     Array(props.length).fill(null).map((_, i) => {
@@ -47,24 +52,24 @@ export default class FieldArray extends React.Component {
     };
   }
 
-  isComplete (value) {
+  isComplete(value: unknown[]) {
     return Array(this.props.length).fill(null).every((_, i) => {
       const val = value[i]
       return !(val === undefined || val === "");
     });
   }
 
-  changeValue(idx, newValue) {
+  changeValue(idx: number, newValue: string) {
     const value = this.state.value.slice(0);
     value[idx] = newValue;
 
     this.setState({
       value,
     }, () => {
-      if (this.isComplete(value)) {
+      if (this.isComplete(value) && this.props.onChange) {
         this.props.onChange(value);
       }
-      else {
+      else if (this.props.onChange){
         // Unset until complete
         this.props.onChange(undefined);
       }
@@ -85,8 +90,8 @@ export default class FieldArray extends React.Component {
       if(this.props.type === 'number') {
         return <InputNumber
           key={i}
-          default={containsValues ? undefined : this.props.default[i]}
-          value={value[i]}
+          default={containsValues || !this.props.default ? undefined : this.props.default[i] as number}
+          value={value[i] as number}
           required={containsValues ? true : false}
           onChange={this.changeValue.bind(this, i)}
           aria-label={this.props['aria-label'] || this.props.label}
@@ -94,8 +99,8 @@ export default class FieldArray extends React.Component {
       } else {
         return <InputString
           key={i}
-          default={containsValues ? undefined : this.props.default[i]}
-          value={value[i]}
+          default={containsValues || !this.props.default ? undefined : this.props.default[i] as string}
+          value={value[i] as string}
           required={containsValues ? true : false}
           onChange={this.changeValue.bind(this, i)}
           aria-label={this.props['aria-label'] || this.props.label}
diff --git a/src/components/InputEnum.jsx b/src/components/InputEnum.tsx
similarity index 58%
rename from src/components/InputEnum.jsx
rename to src/components/InputEnum.tsx
index 138d05bd..93b1dece 100644
--- a/src/components/InputEnum.jsx
+++ b/src/components/InputEnum.tsx
@@ -1,10 +1,9 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import InputSelect from './InputSelect'
 import InputMultiInput from './InputMultiInput'
 
 
-function optionsLabelLength(options) {
+function optionsLabelLength(options: any[]) {
   let sum = 0;
   options.forEach(([_, label]) => {
     sum += label.length
@@ -13,18 +12,20 @@ function optionsLabelLength(options) {
 }
 
 
-export default class InputEnum extends React.Component {
-  static propTypes = {
-    "data-wd-key": PropTypes.string,
-    value: PropTypes.string,
-    style: PropTypes.object,
-    default: PropTypes.string,
-    name: PropTypes.string,
-    onChange: PropTypes.func,
-    options: PropTypes.array,
-    'aria-label': PropTypes.string,
-  }
+export type InputEnumProps = {
+  "data-wd-key"?: string
+  value?: string
+  style?: object
+  default?: string
+  name: string
+  onChange(...args: unknown[]): unknown
+  options: any[]
+  'aria-label'?: string
+  label?: string
+};
 
+
+export default class InputEnum extends React.Component<InputEnumProps> {
   render() {
     const {options, value, onChange, name, label} = this.props;
 
@@ -32,14 +33,14 @@ export default class InputEnum extends React.Component {
       return <InputMultiInput
         name={name}
         options={options}
-        value={value || this.props.default}
+        value={(value || this.props.default)!}
         onChange={onChange}
         aria-label={this.props['aria-label'] || label}
       />
     } else {
       return <InputSelect
         options={options}
-        value={value || this.props.default}
+        value={(value || this.props.default)!}
         onChange={onChange}
         aria-label={this.props['aria-label'] || label}
       />
diff --git a/src/components/InputFont.jsx b/src/components/InputFont.tsx
similarity index 72%
rename from src/components/InputFont.jsx
rename to src/components/InputFont.tsx
index 53540840..b015a8ed 100644
--- a/src/components/InputFont.jsx
+++ b/src/components/InputFont.tsx
@@ -1,17 +1,17 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import InputAutocomplete from './InputAutocomplete'
 
-export default class FieldFont extends React.Component {
-  static propTypes = {
-    value: PropTypes.array,
-    default: PropTypes.array,
-    fonts: PropTypes.array,
-    style: PropTypes.object,
-    onChange: PropTypes.func.isRequired,
-    'aria-label': PropTypes.string,
-  }
+type FieldFontProps = {
+  name: string
+  value?: string[]
+  default?: string[]
+  fonts?: unknown[]
+  style?: object
+  onChange(...args: unknown[]): unknown
+  'aria-label'?: string
+};
 
+export default class FieldFont extends React.Component<FieldFontProps> {
   static defaultProps = {
     fonts: []
   }
@@ -28,7 +28,7 @@ export default class FieldFont extends React.Component {
     }
   }
 
-  changeFont(idx, newValue) {
+  changeFont(idx: number, newValue: string) {
     const changedValues = this.values.slice(0)
     changedValues[idx] = newValue
     const filteredValues = changedValues
@@ -46,7 +46,7 @@ export default class FieldFont extends React.Component {
         <InputAutocomplete
           aria-label={this.props['aria-label'] || this.props.name}
           value={value}
-          options={this.props.fonts.map(f => [f, f])}
+          options={this.props.fonts?.map(f => [f, f])}
           onChange={this.changeFont.bind(this, i)}
         />
       </li>
diff --git a/src/components/InputMultiInput.jsx b/src/components/InputMultiInput.tsx
similarity index 67%
rename from src/components/InputMultiInput.jsx
rename to src/components/InputMultiInput.tsx
index a9d2aad1..632b8c3b 100644
--- a/src/components/InputMultiInput.jsx
+++ b/src/components/InputMultiInput.tsx
@@ -1,16 +1,15 @@
 import React from 'react'
-import PropTypes from 'prop-types'
 import classnames from 'classnames'
-import InputButton from './InputButton'
 
-export default class InputMultiInput extends React.Component {
-  static propTypes = {
-    name: PropTypes.string.isRequired,
-    value: PropTypes.string.isRequired,
-    options: PropTypes.array.isRequired,
-    onChange: PropTypes.func.isRequired,
-  }
+type InputMultiInputProps = {
+  name: string
+  value: string
+  options: any[]
+  onChange(...args: unknown[]): unknown
+  'aria-label'?: string
+};
 
+export default class InputMultiInput extends React.Component<InputMultiInputProps> {
   render() {
     let options = this.props.options
     if(options.length > 0 && !Array.isArray(options[0])) {
@@ -25,7 +24,7 @@ export default class InputMultiInput extends React.Component {
       >
         <input type="radio"
           name={this.props.name}
-          onChange={e => this.props.onChange(val)}
+          onChange={_e => this.props.onChange(val)}
           value={val}
           checked={val === selectedValue}
         />
diff --git a/src/components/InputNumber.jsx b/src/components/InputNumber.tsx
similarity index 74%
rename from src/components/InputNumber.jsx
rename to src/components/InputNumber.tsx
index f2562881..c7b044df 100644
--- a/src/components/InputNumber.jsx
+++ b/src/components/InputNumber.tsx
@@ -1,27 +1,35 @@
-import React from 'react'
-import PropTypes from 'prop-types'
+import React, { BaseSyntheticEvent } from 'react'
 
 let IDX = 0;
 
-export default class InputNumber extends React.Component {
-  static propTypes = {
-    value: PropTypes.number,
-    default: PropTypes.number,
-    min: PropTypes.number,
-    max: PropTypes.number,
-    onChange: PropTypes.func,
-    allowRange: PropTypes.bool,
-    rangeStep: PropTypes.number,
-    wdKey: PropTypes.string,
-    required: PropTypes.bool,
-    "aria-label": PropTypes.string,
-  }
+type InputNumberProps = {
+  value?: number
+  default?: number
+  min?: number
+  max?: number
+  onChange?(...args: unknown[]): unknown
+  allowRange?: boolean
+  rangeStep?: number
+  wdKey?: string
+  required?: boolean
+  "aria-label"?: string
+};
 
+type InputNumberState = {
+  uuid: number
+  editing: boolean
+  editingRange?: boolean
+  value?: number
+  dirtyValue?: number
+}
+
+export default class InputNumber extends React.Component<InputNumberProps, InputNumberState> {
   static defaultProps = {
     rangeStep: 1
   }
+  _keyboardEvent: boolean = false;
 
-  constructor(props) {
+  constructor(props: InputNumberProps) {
     super(props)
     this.state = {
       uuid: IDX++,
@@ -31,7 +39,7 @@ export default class InputNumber extends React.Component {
     }
   }
 
-  static getDerivedStateFromProps(props, state) {
+  static getDerivedStateFromProps(props: InputNumberProps, state: InputNumberState) {
     if (!state.editing && props.value !== state.value) {
       return {
         value: props.value,
@@ -41,16 +49,15 @@ export default class InputNumber extends React.Component {
     return null;
   }
 
-  changeValue(newValue) {
+  changeValue(newValue: number | string | undefined) {
     const value = (newValue === "" || newValue === undefined) ?
-      undefined :
-      parseFloat(newValue);
+      undefined : +newValue;
 
     const hasChanged = this.props.value !== value;
     if(this.isValid(value) && hasChanged) {
-      this.props.onChange(value)
+      if (this.props.onChange) this.props.onChange(value)
       this.setState({
-        value: newValue,
+        value: value,
       });
     }
     else if (!this.isValid(value) && hasChanged) {
@@ -60,25 +67,25 @@ export default class InputNumber extends React.Component {
     }
 
     this.setState({
-      dirtyValue: newValue === "" ? undefined : newValue,
+      dirtyValue: newValue === "" ? undefined : value,
     })
   }
 
-  isValid(v) {
+  isValid(v: number | string | undefined) {
     if (v === undefined) {
       return true;
     }
 
-    const value = parseFloat(v)
+    const value = +v;
     if(isNaN(value)) {
       return false
     }
 
-    if(!isNaN(this.props.min) && value < this.props.min) {
+    if(!isNaN(this.props.min!) && value < this.props.min!) {
       return false
     }
 
-    if(!isNaN(this.props.max) && value > this.props.max) {
+    if(!isNaN(this.props.max!) && value > this.props.max!) {
       return false
     }
 
@@ -88,7 +95,7 @@ export default class InputNumber extends React.Component {
   resetValue = () => {
     this.setState({editing: false});
     // Reset explicitly to default value if value has been cleared
-    if(this.state.value === "") {
+    if(!this.state.value) {
       return;
     }
 
@@ -104,8 +111,8 @@ export default class InputNumber extends React.Component {
     }
   }
 
-  onChangeRange = (e) => {
-    let value = parseFloat(e.target.value, 10);
+  onChangeRange = (e: BaseSyntheticEvent<Event, HTMLInputElement, HTMLInputElement>) => {
+    let value = parseFloat(e.target.value);
     const step = this.props.rangeStep;
     let dirtyValue = value;
 
@@ -119,11 +126,11 @@ export default class InputNumber extends React.Component {
         // for example we might go from 13 to 13.23, however because we know
         // that came from a keyboard event we always want to increase by a
         // single step value.
-        if (value < this.state.dirtyValue) {
-          value = this.state.value - step;
+        if (value < this.state.dirtyValue!) {
+          value = this.state.value! - step;
         }
         else {
-          value = this.state.value + step
+          value = this.state.value! + step
         }
         dirtyValue = value;
       }
@@ -140,10 +147,10 @@ export default class InputNumber extends React.Component {
     this._keyboardEvent = false;
 
     // Clamp between min/max
-    value = Math.max(this.props.min, Math.min(this.props.max, value));
+    value = Math.max(this.props.min!, Math.min(this.props.max!, value));
 
     this.setState({value, dirtyValue});
-    this.props.onChange(value);
+    if (this.props.onChange) this.props.onChange(value);
   }
 
   render() {
@@ -196,15 +203,15 @@ export default class InputNumber extends React.Component {
           type="text"
           spellCheck="false"
           className="maputnik-number"
-          placeholder={this.props.default}
+          placeholder={this.props.default?.toString()}
           value={inputValue === undefined ? "" : inputValue}
-          onFocus={e => {
+          onFocus={_e => {
             this.setState({editing: true});
           }}
           onChange={e => {
             this.changeValue(e.target.value);
           }}
-          onBlur={e => {
+          onBlur={_e => {
             this.setState({editing: false});
             this.resetValue()
           }}
@@ -218,7 +225,7 @@ export default class InputNumber extends React.Component {
         aria-label={this.props['aria-label']}
         spellCheck="false"
         className="maputnik-number"
-        placeholder={this.props.default}
+        placeholder={this.props.default?.toString()}
         value={value === undefined ? "" : value}
         onChange={e => this.changeValue(e.target.value)}
         onFocus={() => {
diff --git a/src/components/InputString.tsx b/src/components/InputString.tsx
index 0b3896f1..75ef8f50 100644
--- a/src/components/InputString.tsx
+++ b/src/components/InputString.tsx
@@ -5,7 +5,7 @@ type InputStringProps = {
   value?: string
   style?: object
   default?: string
-  onChange(...args: unknown[]): unknown
+  onChange?(...args: unknown[]): unknown
   onInput(...args: unknown[]): unknown
   multi?: boolean
   required?: boolean
@@ -83,11 +83,11 @@ export default class InputString extends React.Component<InputStringProps, Input
       onBlur: () => {
         if(this.state.value!==this.props.value) {
           this.setState({editing: false});
-          this.props.onChange(this.state.value);
+          if (this.props.onChange) this.props.onChange(this.state.value);
         }
       },
       onKeyDown: (e) => {
-        if (e.keyCode === 13) {
+        if (e.keyCode === 13 && this.props.onChange) {
           this.props.onChange(this.state.value);
         }
       },