
devtoolz.dev
CodeKitHub
DevToys
CodeSwissKnife
All Over Tools
DevNestTools
DevBox
Free browser-based tools for formatting, encoding, decoding, conversion, generators and everyday software development tasks.

calibre
Amazon Kindle
FBReader
Librera Reader
Speechy
Foliate
eKitaab
Read book files in EPUB, PDF, DOC, DOCX, RTF, TXT, DJVU, FB2, MOBI and CHM formats.

Which is more popular?
Based on our record, ReadEra seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | developertoolbox.tech | readera.org |
| Listed in |
In their own words, as submitted to SaaSHub.


Developer Tool Box is a free collection of browser-based developer utilities for everyday software development. It provides tools for JSON formatting, Base64 conversion, UUID generation, URL encoding, hashing, and more, with additional utilities covering crypto, web, development, networking,...
No description of ReadEra yet.
What each product offers, as listed by its team.


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


No analysis of DeveloperToolBox.tech yet.
Overall verdict
Why this product is good
Recommended for
ReadEra is recommended for anyone who reads ebooks on their Android device, especially those who appreciate a variety of supported formats and a clutter-free reading experience. It is particularly suitable for users who prefer an app that requires no internet connection and values privacy.
Walkthroughs and reviews on video.
No DeveloperToolBox.tech videos yet. You could help us improve this page by suggesting one.
ReadEra Android app tutorial and review free e-reader alternative
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DeveloperToolBox.tech and ReadEra. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DeveloperToolBox.tech since Sep 2026.
I can answer question 1. To read downloaded fanfiction, or any other pdf/epub, you need a reader app. I personaly use the free version of ReadEra because it's the best I've found in terms of range of file formats, general functionality,... Source: over 3 years ago
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DevToolbox is a free, no-signup collection of 148 client-side developer tools and 78 guides — a lightweight alternative to installing dozens of separate SaaS dev-tool apps.
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Free online tools: JSON formatter, password generator, QR code maker, calculators, converters and more. Fast, private, no login — everything runs in your browser.
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Amazon Kindle software lets you read ebooks on your Kindle, iPhone, iPad, PC, Mac, BlackBerry, and...
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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FBReader is an e-book reader for various platforms. Features:
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