Technical & Scientific Symbols
80+ technical, warning, scientific & keyboard symbols. Text-based, no emojis.
Warning & Hazard Signs
Mechanical & Industrial
Electrical & Power
Recycling Symbols
Scientific & Chemical
Keyboard & Computer
Control & Media
Miscellaneous Technical
Technical Symbol Packs
Ready-to-copy collections
Warning Signs
8 items
Mac Keyboard
8 items
Media Controls
8 items
Recycling Codes
8 items
Power Symbols
8 items
Scientific
8 items
Technical symbols are essential for programmers, engineers, mathematicians, and anyone working with specialized notation. This collection includes APL operators, keyboard control characters, electrical symbols, and computing notation marks that you will not find easily on standard keyboards.
From the command key and option symbol used in Mac documentation to the null symbol and logical operators used in formal logic, these characters serve critical roles in technical writing. Developers need them for documentation, scientists use them in papers, and system administrators reference them in guides.
Our technical symbol collection covers keyboard symbols, logical operators, set theory notation, electrical notation, and computing characters. Each symbol copies with one click and works in code editors, documentation, presentations, and any text field across all platforms.
Pro tip: bookmark this page if you write technical documentation. Having quick access to keyboard symbols, logical operators, and computing characters saves significant time compared to hunting through character maps or memorizing alt codes.
Hazard, Mechanical and Computing Signs, Explained
Engineers, developers, and lab writers reach for glyphs that a QWERTY layout simply does not carry. The warning triangle, high-voltage bolt, radioactive trefoil, and biohazard sign communicate danger at a glance in manuals and safety notices. The gear, the recycling loop, the atom, and control marks for play, pause, and eject serve documentation and interface labels. Mac keyboard shortcuts lean on the command, option, and return glyphs, while formal logic and set theory borrow operators of their own.
Each of these is a defined Unicode code point, so it behaves like text: searchable, copyable into a README or a slide, and consistent whether the reader opens it on Linux, Windows, or a phone. That distinction matters, because a pasted symbol will not blur or scale wrong the way an inserted image would. Typing most of them by hand means memorizing hex values or digging through the system character viewer, so one-click copying is the faster route. The marks are sorted by field, from hazard and mechanical to electrical, recycling, scientific, keyboard, and media control, so the exact sign you are documenting sits in a predictable place.
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FAQ
The gear symbol ⚙ represents settings, configuration, or mechanical processes. It's commonly used in apps and websites to indicate a settings menu or technical options.
These are plastic resin identification codes: ♳ (PETE/1), ♴ (HDPE/2), ♵ (PVC/3), ♶ (LDPE/4), ♷ (PP/5), ♸ (PS/6), ♹ (Other/7). They indicate plastic types for recycling.
☢ (trefoil) indicates radioactive materials and ionizing radiation. ☣ (biohazard) indicates biological hazards like infectious agents. Both are internationally recognized warning symbols.
The power symbol ⏻ (IEC 5009) is the universal standby/power toggle. Related: ⏼ (toggle), ⏽ (power on), ⭘ (power off), ⏾ (sleep mode).
Absolutely! Symbols like ⌘ (Command), ⌥ (Option), ⇧ (Shift), ⌃ (Control) are perfect for keyboard shortcut documentation and Mac user guides.
Text symbols like ⚙ ⚠ ☢ display consistently across all devices and in all fonts. Emojis may look different on iOS vs Android vs Windows. For documentation, text symbols are more professional.