
Open Library
Archive.org
Gutenberg Books
calibre
LibriVox
ManyBooks.net
Z-Lib
Online library of downloadable e-books that focuses on quality and modern standards in typography.

Attributer
WhatConverts
Attribution
ConversionTracking.com
LeadSources.io
Automatically capture lead source and sync attribution data to your CRM and marketing tools to see what’s driving conversions and revenue.

Which is more popular?
Based on our record, Standard Ebooks seems to be more popular. It has been mentioned 243 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | standardebooks.org | sourceloop.ai |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from India · 1 - 9 employees · 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Standard Ebooks yet.
SourceLoop gives you complete visibility into where your leads and customers come from. It automatically captures and organizes source, channel, and campaign data for every lead generated through forms, chats, or meetings. See the full journey behind each conversion, from first touch to last...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Standard Ebooks and SourceLoop.
SourceLoop's answer:
SourceLoop connects marketing data directly to leads, not just website traffic. It captures complete lead journeys—from first click to conversion—so teams can see which campaigns truly drive results. Unlike traditional analytics tools, SourceLoop turns attribution data into actionable insights right inside your CRM.
SourceLoop's answer:
Most attribution tools stop at visitor tracking. SourceLoop goes further by linking each lead’s source, channel, and campaign to actual sales outcomes. It’s simple to install, works with any form or CRM, and includes built-in dashboards and lead management—so you get full visibility without complex setup or extra tools.
SourceLoop's answer:
SourceLoop is built for marketers, sales teams, and agencies who need to understand where their leads come from and which efforts generate the best ROI. It’s ideal for businesses that rely on online forms, chats, or meetings to capture new customers.
SourceLoop's answer:
SourceLoop was created to solve a common problem: businesses were generating leads but had no idea which marketing efforts were driving them. Our team set out to build a simple, powerful tool that connects lead data, marketing attribution, and CRM insights—so every business can track, analyze, and grow with confidence.
SourceLoop's answer:
SourceLoop is built using React, Node.js, and PostgreSQL, with server-side tracking and REST APIs for reliable data capture and integration. The system is optimized for scalability, accuracy, and real-time analytics.
SourceLoop's answer:
SourceLoop is trusted by digital marketing agencies, SaaS companies, and service-based businesses across multiple industries. Our early adopters include fast-growing startups and marketing teams that need accurate attribution to guide smarter ad spend and sales strategy.
Share your experience with using Standard Ebooks and SourceLoop. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


i've been building this over the last two weeks, it first started as a reader for standard ebooks (https://standardebooks.org/), with clean typography, progress tracking, and nice deep linking (try clicking on a paragraph to create a... - Source: Hacker News / 2 months ago
Shoutout to https://standardebooks.org/, amazingly formatted classics. - Source: Hacker News / 4 months ago
As others here have mentioned, https://standardebooks.org/ is excellent and my understanding is that they use Gutenberg books as a source for theirs but done up much nicer. - Source: Hacker News / 5 months ago
Tracking SourceLoop since Nov 2025.
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Gutenberg Books is free to use Android, and iOS app with more than 50,000 titles from classic to top hits and features all the important books ever published in history.
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