Damaha Labo

Free Online Converter & Calculator Tools

Free online tools for developers, engineers, and business users. 100+ tools including unit conversion, text processing, data conversion, and calculators in 37 languages. All processing is done in your browser, and no data is stored.

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Features of Damaha Labo

Completely Free

All tools are free to use. No account registration required, no ads.

Privacy Protected

Data is not sent or stored on servers. All processing is done in your browser.

37 Languages Supported

Interface available in 37 languages including Japanese, English, Chinese, Korean, and more.

100+ Tools

Rich lineup of tools including unit conversion, encoding, calculators, and data conversion.

Fast & Lightweight

Instant processing in your browser. No downloads or installations required.

Mobile Friendly

Responsive design for comfortable use on smartphones and tablets.

Tool Categories

Choose tools based on your needs

Unit Conversion Tools

Easily convert length, weight, temperature, speed, area, volume, density, pressure, angles, and more.

12 converters

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Math & Calculation Tools

Practical math tools including fraction calculation, ratio calculation, circumference calculation, exponentiation, and statistics.

15 calculators

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Text Processing Tools

Character count, case conversion, full/half-width conversion, space removal, ruby annotation, and more.

10 tools

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Encoding & Decoding Tools

Base64, URL, HTML entities, hash generation (MD5, SHA-1, SHA-256, SHA-512), and more.

12 tools

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Data Conversion Tools

Convert between JSON, CSV, TSV, XML, YAML, INI, ENV formats. Data format formatting.

15 converters

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Web Development Tools

ISBN conversion, meta tag retrieval, QR code generation, color picker, YouTube thumbnail retrieval, and more.

8 tools

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Network Tools

Subnet mask calculator, Whois lookup, CSR (Certificate Signing Request) checker, and more.

3 tools

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Developer Tools

Unix time conversion, time format conversion, UUID generation, password generation, Cron expression generation, and more.

10 tools

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Popular Tools

Frequently used tools

Base64 Encoder

Convert text or data to Base64 format

JSON Formatter

Format and validate JSON data

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes

URL Encoder

Convert strings to URL-safe format

Character Counter

Count characters, words, lines, and bytes

Length Converter

Convert meters, feet, inches, miles, etc.

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin

UUID Generator

Generate unique UUIDs/GUIDs

Use Cases

Damaha Labo can be used in various scenarios

Development & Engineering

Tools needed for daily development work such as Base64 encoding, hash generation, JSON formatting, and UUID generation are readily available. Perfect for API development, database design, and security checks.

Data Analysis & Conversion

Freely convert data formats such as CSV, JSON, XML, and YAML. Convenient for preprocessing large amounts of data and format changes. Character counting and basic statistics are also available.

Education & Learning

Learn about unit conversion, math calculations, and encoding mechanisms by actually trying them. Useful for programming studies and science/math education.

Business & Marketing

Provides tools for business scenarios such as marketing metric calculation (CPC, CPM, CTR, etc.), ISBN conversion, and QR code generation.

Daily Question Solving

Instantly solve everyday unit conversion questions like "How many meters is 100 feet?" or "What is 80 degrees Fahrenheit in Celsius?"

Frequently Asked Questions (FAQ)

Q1: Is Damaha Labo really free?

A: Yes, all tools are completely free. No account registration required and no usage limits. Supported by ad revenue.

Q2: Is input data stored?

A: No, input data is not sent to or stored on servers. All processing is completed in your browser (client-side). Privacy is completely protected.

Q3: Which browsers are supported?

A: Compatible with modern browsers such as Chrome, Firefox, Safari, and Edge. Some features may not work in Internet Explorer 11 or earlier.

Q4: Can I use it on smartphones?

A: Yes, responsive design allows comfortable use on smartphones and tablets.

Q5: Can I request new tools?

A: Yes, please send new tool requests through our contact form or feedback feature. We'll accommodate as much as possible.

Q6: How do I switch languages?

A: Select your preferred language from the language selection dropdown in the top bar.

Q7: Can it be used offline?

A: Some tools work offline (PWA compatible), but an internet connection is generally required.

Q8: Is there API access?

A: We currently don't provide API access. We're considering future availability.