Software Alternatives, Accelerators & Startups

Guerrilla Mail VS AllTools.dev

Compare Guerrilla Mail VS AllTools.dev and see what are their differences

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Guerrilla Mail logo Guerrilla Mail

Guerrilla Mail is a web-based app that provides a disposable and anonymous email address. Users of the service are not required to set up an account in order to send or receive emails.

AllTools.dev logo AllTools.dev

500+ free online calculators and tools for finance, health, math, conversions, and more.
  • Guerrilla Mail Landing page
    Landing page //
    2021-09-15
Not present

AllTools.dev is a modern, fast, free online toolkit built for people who need quick, accurate calculators and converters without signing up, creating an account, or wading through cluttered interfaces. The platform offers 500+ tools across finance (mortgage calculators, loan amortization, compound interest, currency conversion, debt payoff, retirement planning), health (BMI, calorie needs, pregnancy tracking, ideal weight, body composition), math (scientific, statistical, geometric, percentage, fraction), science and engineering, date and time utilities, unit conversions (volume, length, temperature, power, area), developer utilities (JSON, regex, JWT, hashing), and interactive math and algorithm visualizations. Every tool is free and works instantly in the browser. No accounts, no paywalls, no sign-in walls, no data collection beyond standard analytics. Calculations happen client-side for speed and privacy. Unlike older established calculator sites that grew through 20 years of ad-heavy layouts and outdated UX, AllTools.dev is built fresh on Astro with a clean, mobile-first, accessibility-conscious interface. New calculators ship weekly based on user demand. Ideal for: students doing homework, developers needing quick conversions, finance-minded folks planning loans and investments, professionals doing scientific or engineering calculations, and anyone who just needs a fast answer without installing an app.

AllTools.dev

$ Details
-
Release Date
2026 April
Startup details
Country
Bulgaria
Founder(s)
Ivan Kovachev
Employees
1 - 9

Guerrilla Mail features and specs

  • Anonymity
    Guerrilla Mail allows users to send and receive emails without revealing their real identity. This is beneficial for privacy-focused individuals who do not want their personal information exposed.
  • Temporary Email
    The service provides temporary email addresses that automatically expire, which helps to reduce spam and prevent unwanted emails in your primary inbox.
  • No Registration Required
    Users do not need to sign up or provide any personal information to use the service, making it quick and easy to use.
  • Spam Filter
    Guerrilla Mail has a spam filter that helps in controlling unsolicited emails, enhancing the user's experience.
  • Attachment Support
    Users can send attachments with their emails, which adds versatility to the service for various needs.

Possible disadvantages of Guerrilla Mail

  • Limited Duration
    Emails and email addresses only last for a short period (60 minutes), which can be inconvenient for long-term needs.
  • Basic Interface
    The user interface is quite simple and might not offer the advanced features that other email services provide.
  • Not Secure
    As a temporary email service, it lacks robust security features, making it unsuitable for sending sensitive information.
  • Deliverability Issues
    Emails sent via Guerrilla Mail may sometimes be recognized as spam by recipients' email providers, which can lead to deliverability issues.
  • Public Access
    Someone who knows the email address you are using can access your received emails since the service is publicly accessible, which could pose a privacy risk.

AllTools.dev features and specs

  • All-in-one toolbox
    AllTools.dev provides a wide collection of developer and utility tools in a single platform, eliminating the need to visit multiple websites for different tasks like encoding, formatting, converting, and generating data.
  • Free to use
    The tools available on AllTools.dev are free to access, making it a cost-effective solution for developers and professionals who need quick access to common utilities without paying for subscriptions.
  • Browser-based convenience
    All tools run directly in the browser, meaning there is no need to install software or dependencies. Users can quickly access and use any tool from any device with a web browser.
  • Wide variety of tools
    The platform covers a broad range of categories including text manipulation, JSON formatting, encoding/decoding, hash generation, color tools, and more, catering to diverse developer needs.
  • Simple and clean interface
    The site features a straightforward, easy-to-navigate interface that allows users to find and use the tools they need without unnecessary complexity or clutter.

Analysis of AllTools.dev

Overall verdict

  • AllTools.dev is a solid, convenient collection of free online developer utilities that runs in the browser, making it a handy bookmark for common coding and formatting tasks.

Why this product is good

  • Offers a wide range of developer tools (formatters, converters, encoders/decoders, generators) in one place
  • Free to use with no installation required, working directly in the browser
  • Client-side processing for many tools helps keep data private
  • Clean, straightforward interface that saves time switching between multiple single-purpose sites
  • Useful for quick one-off tasks without needing to write custom scripts

Recommended for

  • Developers who need quick access to common utilities like JSON formatting, Base64 encoding, or hashing
  • Students and beginners learning to code who want simple, accessible tools
  • Professionals looking for a consolidated toolbox to avoid bookmarking many separate sites
  • Anyone needing occasional data conversion, formatting, or generation tasks without installing software

Guerrilla Mail videos

Can guerrilla mail be traced?

More videos:

  • Review - Saca provecho de un correo temporal con Guerrilla Mail

AllTools.dev videos

No AllTools.dev videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Guerrilla Mail and AllTools.dev)
Disposable Email
100 100%
0% 0
Online Calculators
0 0%
100% 100
Fake Email
100 100%
0% 0
Developer Tools
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Guerrilla Mail and AllTools.dev

Guerrilla Mail Reviews

15 Alternatives to Mailinator
Guerrilla Mail is one of the best known disposable email providers around. It uses a session address that lasts as long as you keep that session open. Any emails received will automatically be deleted after an hour, though. To reduce the chances of blacklisting, there are currently eleven domains to choose from, including the awesome @sharklasers.com.

AllTools.dev Reviews

We have no reviews of AllTools.dev yet.
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Social recommendations and mentions

Based on our record, Guerrilla Mail seems to be more popular. It has been mentiond 5 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Guerrilla Mail mentions (5)

  • Recommended alternative to guerrillamail.com?
    I've occasionally used guerrillamail.com to create a free throwaway email account when registering for other sites. Source: about 4 years ago
  • Anyone here use guerrillamail.com at all?
    But just the last couple of days guerrillamail.com seems to be down. Does this happen more often? Any alternatives you'd suggest? Source: about 4 years ago
  • Should I be using a VPN when downloading files? Also what kind of “iffy” stuff should I be avoiding. New to the community, thanks
    Some services block the guerrillamail.com emails and the sharklaser ones. I use these to sign up for spotify and other platforms that dont need my info. Source: over 4 years ago
  • A typical elven caravan. This drawing is inspired by the amazing pixel art on the trading page of the wiki. I have been meaning to draw it for years. Full credit to whoever made the pixel art! I recorded the process drawing this, I'll link it in the comments below :)
    Go to guerrillamail.com and make 100 more accounts :P. Source: over 5 years ago
  • Tickets are available for free on Eventbrite... be a real shame if a bunch of lefties ordered all the tickets, so she winds up speaking in an empty auditorium.
    You do need to verify the emails, unfortunately. You can use guerrillamail.com or 10minutemail.org with a private tab or tor. Source: over 5 years ago

AllTools.dev mentions (0)

We have not tracked any mentions of AllTools.dev yet. Tracking of AllTools.dev recommendations started around May 2026.

What are some alternatives?

When comparing Guerrilla Mail and AllTools.dev, you can also consider the following products

Mailinator - Any Inbox. Any Time.

calculator.net - Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.

10 Minute Mail - Temporary disposable e-mail service to beat spam. Avoid spam with a free secure e-mail address.

AllToolsLab - AllToolsLab offers 50+ free online tools including PDF tools, calculators, converters and text utilities.

MailDrop - maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.

Omni Calculator - Helping you make rational decisions, one calculation at a time.