
10015.io
FreeToolkit
FreeToolPoint
PotatoTools
ToolMasterApp.in
ToolsOnline.run
Cryptii
200+ free browser tools, most under 40 KB. Lightweight, private and easy to use, with no signup, no intrusive ads and no server-side processing.

SmallDevTools
DevToys
CyberChef
CodeSwissKnife
Cryptii
DevToys for Mac
iLovePDF
30 free developer and SEO tools that run in your browser

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | appergo.com | devtoolcore.com |
| Pricing | ||
| Platforms | ||
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


AppErgo is an independent collection of 200+ free browser-based tools covering text, codes and puzzles, conversions, dates and time, audio, games, random generators, web development and everyday utilities. Available in 10 languages, the website is designed for quick use on desktop and mobile,...
DevToolCore is a collection of 30 free browser-based tools for developers and SEO practitioners. The JSON tools format, validate, and minify payloads. The PDF tools compress documents to exact size limits for upload portals and count words without uploading the file. Image tools hit exact KB...
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of DevToolCore yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing AppErgo and DevToolCore.
AppErgo's answer
AppErgo brings together more than 200 browser tools in one fast, lightweight and privacy-friendly toolbox. Every tool is 100% free, works without an account, runs directly in the browser, avoids intrusive advertising, and is fully responsive on both desktop and mobile.
DevToolCore's answer:
Thirty utilities in one place, all running locally in the browser, with no accounts anywhere.
AppErgo's answer
AppErgo was created in France in 2026 as an independent project developed by a solo creator. Its name combines “App”, for applications and online tools, with “Ergo”, reflecting a focus on ergonomics, simplicity and ease of use. The project started with a small collection of practical tools and gradually grew into a toolbox of more than 200 tools covering text, codes and puzzles, dates, audio, games and everyday tasks.
DevToolCore's answer:
It grew out of small recurring needs, cleaning up JSON or hitting a portal's PDF size cap, and a preference for tools that keep files in the browser.
AppErgo's answer
AppErgo is primarily built with static HTML, CSS and vanilla JavaScript. Its pages are generated through a custom administration system based on PHP and MySQL, while the public tools rely on standard browser technologies such as SVG, Canvas and the Web Audio API. All processing takes place directly in the browser, without external APIs or remote processing services.
DevToolCore's answer:
A Java backend serving a static client. Every tool's logic runs client-side in JavaScript.
AppErgo's answer
AppErgo is designed for students, teachers, developers, creators, office workers, puzzle enthusiasts and everyday users who need a practical online tool without creating an account or navigating a complicated service. Its wide range of tools supports both occasional tasks and regular use on desktop or mobile.
DevToolCore's answer:
Developers and SEO practitioners who need quick utility work without installing anything.
AppErgo's answer
AppErgo is built for people who want to open a tool, complete a task and move on. It combines more than 200 fast, lightweight and responsive tools with clear interfaces and local browser processing. There is no signup, no intrusive advertising and no unnecessary upload of personal data. The tools are available directly on desktop and mobile, without installing anything.
DevToolCore's answer:
One bookmark replaces a dozen single-purpose sites, and nothing you paste into it gets uploaded.
AppErgo's answer
AppErgo is primarily designed for individual users rather than named enterprise customers. Its audience includes students, teachers, developers, creators, puzzle enthusiasts and anyone looking for a quick browser-based tool.
Share your experience with using AppErgo and DevToolCore. For example, how are they different and which one is better?
When comparing AppErgo and DevToolCore, you can also consider the following products.

10015.io is an all-in-one toolbox offering many tools from various categories.
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Handy developer tools with a delightful interface
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100+ free online tools: JSON formatter, Base64 encoder, UUID generator, regex tester, age calculator, color picker, unit converter & more. Fast, private — runs entirely in your browser. No login.
Compare FreeToolkit to AppErgo or DevToolCore:

A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
Compare DevToys to AppErgo or DevToolCore:

45+ free browser-based tools: PDF tools, resume builder, OCR, YouTube thumbnails, favicon generator, calculators & more. No signup, no uploads.
Compare FreeToolPoint to AppErgo or DevToolCore:
