All Free Tools
8,445 free online tools across 85 categories
Every tool here runs in your browser — no sign-up, no upload, nothing to install. Convert files, format code, generate text, run calculations, and check SEO across PDF, image, developer, finance, and unit-conversion tools. Pick one and start.
| Tool | Category | Description | Action |
|---|---|---|---|
|
53 Minute Timer
|
Date & Time | Open | |
|
54 Minute Timer
|
Date & Time | Open | |
|
55 Minute Timer
|
Date & Time | Open | |
|
555 Astable Calculator
|
Electrical Tools | Open | |
|
555 Monostable Calculator
|
Electrical Tools | Open | |
|
555 Timer Calculator
|
Electrical Tools | Open | |
|
56 Minute Timer
|
Date & Time | Open | |
|
57 Minute Timer
|
Date & Time | Open | |
|
58 Minute Timer
|
Date & Time | Open | |
|
59 Minute Timer
|
Date & Time | Open | |
|
5K Pace Calculator
|
Sports Tools | Open | |
|
6 Hour Timer
|
Date & Time | Open | |
|
6 Minute Timer
|
Date & Time | Open | |
|
60 Minute Timer
|
Date & Time | Open | |
|
7 Hour Timer
|
Date & Time | Open | |
|
7 Minute Timer
|
Date & Time | Open | |
|
720P Resolution Reference
|
Reference Tools | Open | |
|
75 Minute Timer
|
Date & Time | Open | |
|
8 Hour Timer
|
Date & Time | Open | |
|
8 Minute Timer
|
Date & Time | Open | |
|
8K Resolution Reference
|
Reference Tools | Open | |
|
9 Hour Timer
|
Date & Time | Open | |
|
9 Minute Timer
|
Date & Time | Open | |
|
9:16 Aspect Ratio Calculator
|
Number Tools | Open | |
|
90 Minute Timer
|
Date & Time | Open | |
|
90 Second Timer
|
Date & Time | Open | |
|
A-a Gradient Calculator
|
Health & Fitness | Open | |
|
A-a Oxygen Gradient Calculator
|
Health & Fitness | Open | |
|
A-Weighting Calculator
|
Acoustics Tools | Open | |
|
A/B Test Sample Size Calculator
|
Marketing Tools | Open | |
|
A/B Test Statistical Significance Calculator
|
Marketing Tools | Open | |
|
AAC to AIFF Converter
|
Audio Tools | Open | |
|
AAC to FLAC Converter
|
Audio Tools | Open | |
|
AAC to M4A Converter
|
Audio Tools | Open | |
|
AAC to MP3 Converter
|
Audio Tools | Open | |
|
AAC to OGG Converter
|
Audio Tools | Open | |
|
AAC to Opus Converter
|
Audio Tools | Open | |
|
AAC to WAV Converter
|
Audio Tools | Open | |
|
AAC to WMA Audio Converter
|
Audio Tools | Open | |
|
Aadhaar Photo Resizer
|
Image Tools | Open | |
|
Abbreviation Expander
|
Language Tools | Open | |
|
ABCD2 TIA Risk Score Calculator
|
Health & Fitness | Open | |
|
ABCD2 TIA Score Calculator
|
Health & Fitness | Open | |
|
ABCDE Mole Check Helper
|
Health & Fitness | Open | |
|
Absolute Humidity Calculator
|
Weather Tools | Open | |
|
Absolute Magnitude Calculator
|
Astrophysics Tools | Open | |
|
Absolute Neutrophil Count (ANC) Chemo Helper
|
Health & Fitness | Open | |
|
Absolute Value Calculator
|
Math Calculators | Open |
Showing 97–144 of 8,445 tools