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Free Online Tools That Actually Work

Word counter, JSON formatter, password generator, and more. Bookmark this page — you'll use it daily.

25 Free Tools
0 Signups Required
Free Forever
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Word Counter

Count words, characters, sentences & reading time instantly.

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Case Converter

Convert text to UPPER, lower, Title, Sentence case & more.

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Password Generator

Generate strong, secure passwords with custom options.

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{ }

JSON Formatter

Format, validate & beautify your JSON with syntax highlighting.

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Color Palette

Generate beautiful color palettes. Click to copy hex codes.

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Interest Calculator

Calculate compound interest and see your money grow over time.

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Token Counter

Estimate LLM token counts & API costs for GPT, Claude, and Gemini.

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Base64 Encode/Decode

Encode text to Base64 or decode Base64 back to plain text instantly.

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URL Encode/Decode

Encode or decode URL components for safe use in web addresses.

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Unix Timestamp

Convert between Unix epoch timestamps and human-readable dates.

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UUID Generator

Generate unique v4 UUIDs in bulk. Click to copy any ID instantly.

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#️⃣

Hash Generator

Generate SHA-256, SHA-1, and MD5 hashes locally in your browser.

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Text Diff Checker

Compare two texts side-by-side and highlight every difference.

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📄

Markdown ↔ HTML

Convert Markdown to clean HTML or HTML back to Markdown.

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JWT Decoder

Decode JSON Web Tokens safely in your browser. Nothing sent to servers.

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Cron Expression Builder

Build & understand cron schedules with plain-English explanations.

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Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, or words.

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QR Code Generator

Create QR codes for any URL or text. Download as PNG image.

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Prompt XML Formatter

Structure prompt inputs and instructions in clean, nested XML tags.

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JSON Schema Generator

Convert JSON structures into strict schemas for structured outputs.

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AI API Payload Builder

Generate request payloads and SDK integrations for major LLM providers.

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JSON-LD Schema Generator

Generate structured JSON-LD schema markup to boost search engine SEO crawling.

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HTML Entity Encoder/Decoder

Encode special characters or decode HTML entities back to text safely.

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YAML ↔ JSON Converter

Convert data between YAML and JSON format locally in your browser.

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RegEx Tester

Test your regular expression patterns against sample text in real-time.

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Why ToolBox?

Instant

No loading, no signup, no email verification. Just open and use.

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Private

Everything runs in your browser. Your data never leaves your device.

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Free Forever

No premium tiers. No hidden paywalls. Every tool is 100% free.

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Works Everywhere

Desktop, tablet, phone — works perfectly on any screen size.