Client-side only

A tidy home for the browser tools you actually reuse

Northline Tools is a lightweight collection of formatting, security, network and automation utilities with no accounts, no uploads and no backend dependencies.

Browse catalog Open JSON formatter

Fast static pages Browser-side processing Clear guidance and tips

JSON Formatter

Format, validate and minify JSON with clearer error feedback and one-click copying.

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Browse by category

A smaller, calmer map of the toolkit

Tools are grouped by the kind of problem you are solving, so the catalog feels intentional instead of noisy.

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Formatting

Text, JSON and URL transformation helpers for everyday debugging and cleanup.

JSON Base64 URL

Security

Password and hashing tools for quick local checks without uploading your data.

Password Generator Hash Tool

Network

Useful client and subnet checks for diagnostics, education and quick admin work.

Client Info Subnet Calculator

Time & Automation

Convert timestamps and generate cron expressions without leaving the browser.

Timestamp Converter Cron Generator

Generators

Simple helpers for IDs, credentials and other reusable snippets.

UUID Generator Password Generator

Tool catalog

Open the exact page you need

Every tool has its own page, lighter layout and contextual help instead of one long dashboard.

{ } Formatting JSON Formatter

Format, validate and minify JSON with clearer messages.

64 Formatting Base64

Encode or decode plain text with quick copy support.

% Formatting URL Encode/Decode

Transform URL fragments safely with readable output.

# Security Hash Tool

Generate and compare hashes for text or local files.

** Security Password Generator

Create stronger passwords with readable options and strength hints.

~ Network Client Info

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

/ Network Subnet Calculator

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

@ Time & Automation Timestamp Converter

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

* Time & Automation Cron Generator

Build cron expressions with a guided picker and copy feedback.

+ Generators UUID Generator

Generate one or several UUIDs without leaving the page.