StackOnlineTools: Your ultimate all-in-one toolbox

Name: StackOnlineTools: Your ultimate all-in-one toolbox
Author: stackonlinetools.com

"All-in-one productivity and developer tools with JSON formatter, text converters, password generator, SEO utilities, and more.

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Features & Capabilities

Stack Online Tools is the ultimate all-in-one productivity and developer toolkit for Firefox. Stop switching between sites or loading multiple add-ons — access 30+ essential online tools, text utilities, and developer helpers right from your browser.

Built for developers, content creators, digital marketers, SEO professionals, and everyday users, this extension speeds up workflows with fast, lightweight, and privacy-first utilities that run locally when possible.

✔ What You Get

Developer & Code Utilities

JSON Formatter & Validator – instant formatting, beautification, and error checking
JSON ↔ YAML Converter
Base64 Encode/Decode
URL Encode/Decode
HTML, CSS & JS Minifiers
Markdown ↔ HTML Converter
Robots.txt Generator for SEO and crawler structuring
Epoch Unix Timestamp
JWT Encoder/Decoder
Hash Generator
QR Code Generator
Diff Checker
Color Converter
CSS Unit Converter

These tools make Stack Online Tools a top choice for developer tools, programmer utilities, and code formatters in Firefox.

Text & Content Utilities

Case Converter (uppercase, lower, title, camel, snake, kebab)
Word & Character Counter
URL Slug Generator
Line Counter & List Randomizer
Text Repeater
Text Reverser
Remove Duplicate Lines
Lorem Ipsum Generator

Essential for writers, bloggers, SEO editors, and anyone optimizing content.

Security & Password Tools

Strong Password Generator (custom options)
Password Strength Checker

Perfect for web developers, admins, and safe credential creation.

Image & File Tools

PNG ↔ JPG Converter
PDF ↔ JPG Converter (secure web tool)

Quick Calculators & Generators

Age Calculator
Percentage Calculator
Random Name Generator
Random Address Generator

Key Benefits

✔ All-in-one productivity tools & utilities ✔ Fast, lightweight, and user-friendly ✔ Privacy-first — tools run locally ✔ No account, registration, or tracking ✔ Replaces multiple single-purpose add-ons

Stack Online Tools supports nearly every common workflow, from text conversions and data formatting to developer operations, making it one of the most versatile Firefox add-ons available.

Who This Is For

Developers & engineers
SEO specialists & marketers
Writers & editors
Designers & web admins
Students & everyday users

User Growth & Download Statistics

Add-on

By:

stackonlinetools.com

Daily users:

Version:

1.1.3 Last updated: 2026-01-20

Version code:

6111392

Creation date:

2025-12-11

Risk:

Permissions:

storage
https://stackonlinetools.com/*

Size:

100.29KB

Email:

su*****@stackonlinetools.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 124,820 ▲ 852

Other rankings

#219 in programmer keyword 7 ▲ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

stackonlinetools.com

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/stack-online-tools/

Email:

su*****@stackonlinetools.com

Website:

https://www.codelabgh.com

Is StackOnlineTools: Your ultimate all-in-one toolbox Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

StackOnlineTools: Your ultimate all-in-one toolbox requires very minimum permissions.

Risk impact analysis details

Low Request access to the following domains: stackonlinetools.com

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

StackOnlineTools: Your ultimate all-in-one toolbox is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****