diff --git a/ReadMe.md b/ReadMe.md
index ccfa2b5942..d0cfd63207 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -148,7 +148,7 @@ make whole
   * cli - Console service
   * debug_tools - different tools that we use on factory and for debug
   * dialogs - service for showing GUI dialogs
-  * dolphin - dolphin service and supplientary apps
+  * dolphin - dolphin service and supplementary apps
   * gpio-tester - GPIO control application
   * gui - GUI service
   * ibutton - ibutton application, onewire keys and more
@@ -187,7 +187,7 @@ make whole
   * app-scened-template - scened template app library
   * app-template - template app library
   * callback-connector - callback connector library
-  * common-api - common api delaration library
+  * common-api - common api declaration library
   * cyfral - cyfral library
   * drivers - drivers that we wrote
   * fatfs - external storage file system
diff --git a/assets/ReadMe.md b/assets/ReadMe.md
index 307c27dc66..4b554e0ab1 100644
--- a/assets/ReadMe.md
+++ b/assets/ReadMe.md
@@ -18,12 +18,12 @@ make all
 
 - `NAME`    - mandatory - Asset name in CamelCase. [A-Za-z0-9], special symbols not allowed
 - `VARIANT` - optional  - icon variant: can relate to state or rendering conditions. Examples: active, inactive, inverted.
-- `SIZE`    - mandatory - size in px. Example squere 10, 20, 24, etc. Example rectangular: 10x8, 19x5, etc.
+- `SIZE`    - mandatory - size in px. Example square 10, 20, 24, etc. Example rectangular: 10x8, 19x5, etc.
 
 Image names will be automatically prefixed with `I_`, animation names with `A_`.
 Icons and Animations will be gathered into `icon.h` and `icon.c`.
 
 # Important notes
 
-Don't include assets that you are not using, compiller is not going to strip unusued assets.
+Don't include assets that you are not using, compiler is not going to strip unused assets.
 
diff --git a/bootloader/ReadMe.md b/bootloader/ReadMe.md
index a8228e51ea..8a35cc5faa 100644
--- a/bootloader/ReadMe.md
+++ b/bootloader/ReadMe.md
@@ -16,7 +16,7 @@ What it does?
 | f7        | 0x08000000    | 0x00008000    | L+Back    | L+Back, hold L    |
 
 Also there is a ST bootloader combo available on empty device: L+Ok+Back, release Back,Left.
-Target independend code and headers in `src` and `target/include` folders.
+Target independent code and headers in `src` and `target/include` folders.
 
 # Building
 
diff --git a/firmware/ReadMe.md b/firmware/ReadMe.md
index e3d2987091..237adae9a9 100644
--- a/firmware/ReadMe.md
+++ b/firmware/ReadMe.md
@@ -16,7 +16,7 @@ What it does?
 | f7        | 0x08000000    | 0x00008000    | L+Back    | L+Back, hold L    |
 
 Also there is a ST bootloader combo available on empty device: L+Ok+Back, release Back,Left.
-Target independend code and headers in `target/include` folders.
+Target independent code and headers in `target/include` folders.
 
 # Building
 
diff --git a/scripts/ReadMe.md b/scripts/ReadMe.md
index 2cd1ee0bd4..b04ed0d1a0 100644
--- a/scripts/ReadMe.md
+++ b/scripts/ReadMe.md
@@ -6,7 +6,7 @@ You will need to add STM32_Programmer_CLI to your path to use them.
 
 # Flashing empty MCU/Flipper
 
-Always flash your device in the folllowing sequence:
+Always flash your device in the following sequence:
 
 - OTP (Only on empty MCU)
 - Core1 and Core2 firmware flashing
@@ -19,7 +19,7 @@ Always flash your device in the folllowing sequence:
 Normally OTP data generated and flashed at the factory.
 In case if MCU was replaced you'll need correct OTP data to be able to use companion applications.
 Use `otp.py` to generate and flash OTP data.
-You will need exact main board revision to genrate OTP data. It can be found on main PCB.
+You will need exact main board revision to generate OTP data. It can be found on main PCB.
 Also display type, region and etc...
 
 !!! Flashing incorrect OTP may permanently brick your device !!!
@@ -32,12 +32,12 @@ Never flash FUS or you will loose your job, girlfriend and keys in secure enclav
 
 ## Option Bytes
 
-!!! Setting incorrect Otion Bytes may brick your MCU !!!
+!!! Setting incorrect Option Bytes may brick your MCU !!!
 
 Defaults are mostly OK, but there are couple things that we'd like to tune.
 Also OB may be damaged, so we've made couple scripts to check and set option bytes.
 
-!!! Setting incorrect Otion Bytes may brick your MCU !!!
+!!! Setting incorrect Option Bytes may brick your MCU !!!
 
 Checking option bytes: