N NetToolsLab Network tools lab

Network tools lab

NetToolsLab

Client-side tools for formatting, security, networking and scheduling.

Tools

Catalog

Tools

Category
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Formatting JSON Formatter

Format, validate and minify JSON with clearer messages.

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Formatting Base64

Encode or decode plain text with quick copy support.

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Formatting URL Encode/Decode

Transform URL fragments safely with readable output.

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Security Hash Tool

Generate and compare hashes for text or local files.

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Security Password Generator

Create stronger passwords with readable options and strength hints.

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Network Client Info

Inspect browser, locale, platform and best-effort local network hints.

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Network Subnet Calculator

Work out mask, range and broadcast data from IPv4 CIDR input.

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Time & Automation Timestamp Converter

Convert timestamps with live current time and UTC/local output.

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Time & Automation Cron Generator

Build cron expressions with a guided picker and copy feedback.

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Generators UUID Generator

Generate one or several UUIDs without leaving the page.

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JSON Formatter

Use this tool to validate raw JSON, format it for readability or minify it into a single line. Input stays in the browser.

Best for API payloads, configs and copied log fragments.

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Base64

Encode plain text into Base64 or decode Base64 back into readable text.

Useful when checking headers, tokens, embedded payloads or compact text blobs.

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URL Encode/Decode

Convert text into URL-safe encoding or decode encoded parameters and fragments.

Useful for query strings, callback URLs and testing encoded route parts.

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Hash Tool

Generate SHA hashes for text or local files and compare the result with an expected value.

Good for checksum verification, release artifacts and quick text integrity checks.

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Password Generator

Build stronger passwords with controllable character groups, length and a simple strength estimate.

The “exclude similar characters” option is useful when you need human-readable credentials.

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Client Info

Shows what the browser exposes about the device, locale and viewport.

Local IP detection is best-effort only and depends on browser WebRTC behavior.

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Subnet Calculator

Calculate mask, network, broadcast and usable host range from an IPv4 address plus CIDR prefix.

Useful for quick planning and verification when working with small or medium IPv4 networks.

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Timestamp Converter

Convert Unix timestamps or date strings into UTC, ISO and local time views.

The tool also shows the current Unix time live and auto-detects seconds vs milliseconds.

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Cron Generator

Assemble a standard cron expression through guided pickers instead of writing fields manually.

Designed for quick schedules, reminders and shell automation snippets.

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UUID Generator

Generate one or several UUID values in the browser with no extra setup.

Useful for placeholders, IDs in configs and quick testing data.

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