bolt Simple. Fast. Free.

Everyday tools,
zero friction

Single-purpose utilities that run in your browser. No sign-up, no tracking.

Tools

8 available
speed
Web Tool

Reaction Tests

Measure your reaction speed with simple, choice, audio, and go/no-go tests. Track progress over time with charts and statistics.

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content_copy
Browser Extension

Copy Page Text

The fastest way to copy all text from a webpage for notes, documents, or sharing with a single click.

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auto_fix_high
Web Tool

Smart Text Cleaner

Remove extra spaces, fix line breaks, and clean formatting from any text instantly.

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text_fields
Web Tool

Word Case Swap

Convert text between UPPER, lower, Title Case and more with one click.

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counter_1
Web Tool

Character Counter

Count characters, words, sentences, paragraphs, and estimate reading time instantly.

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data_object
Web Tool

JSON Formatter

Format, validate, and minify JSON with syntax highlighting and error detection.

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code
Web Tool

Base64 Encoder

Encode and decode Base64 strings instantly. Supports Unicode text.

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bar_chart
Web Tool

Word Frequency Analyzer

Extract unique words, count frequency, and filter out known words. Perfect for language learners to find new vocabulary in texts.

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From the Blog

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visibility_off
6 min read

10 Hidden Characters That Break Your Copy-Paste

Invisible Unicode characters silently corrupt your text when you copy-paste. Learn which ones cause problems and how to remove them.

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code
5 min read

Why camelCase vs snake_case Matters in Code

Naming conventions affect readability, tooling, and team velocity. A practical guide to choosing the right case style for your project.

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speed
5 min read

Average Reaction Time by Age: What's Normal?

Reaction time varies by age, sleep, and practice. See the benchmarks, learn what affects your speed, and test yourself.

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data_object
6 min read

Top 5 JSON Errors and How to Find Them Fast

Trailing commas, missing quotes, wrong encoding — the most common JSON mistakes that break APIs and configs. Learn how to spot and fix them instantly.

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timer
7 min read

How to Measure Reaction Time Accurately

Three methods to measure reaction time — ruler drop, online tests, and lab experiments. Pros, cons, and tips for getting accurate results.

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counter_1
5 min read

Why Counting Characters Matters: Twitter, SEO & SMS Limits

Character limits are everywhere — social media posts, meta titles, SMS messages, database fields. Learn the exact limits and how to stay within them.

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neurology
5 min read

Reaction Time vs Reflex: What Is the Difference?

Reaction time and reflexes are not the same thing. Learn the neuroscience behind each, see real-world examples, and find out which one you can actually train.

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Frequently Asked Questions

Are these tools free?

Yes, all tools are completely free with no limits, no sign-up required.

Is my data safe?

Absolutely. All tools run entirely in your browser. No data is sent to any server.

Do I need to create an account?

No. Just open any tool and start using it. No registration needed.

What browsers are supported?

All modern browsers — Chrome, Firefox, Safari, Edge. Tools work on both desktop and mobile.

Can I suggest a new tool?

Yes! We're always looking for useful utilities. Contact us with your ideas.

tips_and_updates

Got an idea for a tool?

We're always looking for useful utilities to build. If you have a suggestion, let us know.