Here are some tools I used before which could increase the production efficiency, so I recommend them to you. Also this archieve will be continuously updated.

Online tools(Web)

Documents

Smallpdf - doc format converter
Diffchecker - text comparison

Images

TinyPNG – image compression
Online Image Сompressor

Apple Devices

IPSW Downloads
The iPhone Wiki

Desktop Software

• 3uTools
• Beyond Compare
• CCleaner
• CLaunch
• Everything
• IDM
• MobaXterm

Chrome Extensions

• Adblock
• Violentmonkey
• Octotree
• Distill Web Monitor
• SessionBox
• Momentum

iOS Jailbreak Tweaks

• App Admin
• ConditionalWiFi
• Filza
• Flex
• iCleaner
• Liberty
• OTADisabler
• SpringPlus
• StatusModifier
• StoreSwitcher