Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text.
Encode text to Base64 or decode Base64 back to text.
Use Shawon Calculators' free base64 encoder to get instant, accurate results directly in your browser. No data is stored or transmitted — all calculations happen locally on your device for complete privacy.
Encode text to Base64 or decode Base64 back to text. Supports UTF-8. Free, instant, browser-based encoder. Part of our Developer calculators collection, trusted by students, professionals, and everyday users worldwide.
Input your numbers into the calculator fields
Results are calculated instantly as you type
Copy results or use them for your needs
Uses standard mathematical formulas and algorithms verified against professional tools.
Your data never leaves your device. All calculations happen locally in your browser.
No hidden fees, no registration. 51+ calculators available for unlimited use.
Responsive design works perfectly on desktop, tablet, and mobile browsers.
Base64 encodes binary data into ASCII text characters, making it safe for transmission through text-only systems like email or URLs.
Paste your text and click Encode. The Base64 output is ready to copy.
Yes, completely free.
Yes. All encoding/decoding happens in your browser.
Shawon Calculators provides 49+ free online calculators across financial, health, math, developer, date/time, and utility categories. Every calculator runs entirely in your browser — no data is sent to any server, ensuring your financial, health, and personal information stays completely private.
From mortgage and loan calculators to BMI, calorie counters, and scientific calculators — our tools cover everyday math, finance, health, and development needs. All calculators provide instant results with no registration, no ads interrupting calculations, and no usage limits. Works on Chrome, Firefox, Safari, Edge, and all modern browsers on any device.