Software Alternatives, Accelerators & Startups

Smallpdf VS Hooklistener

Compare Smallpdf VS Hooklistener and see what are their differences

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Smallpdf logo Smallpdf

PDF document management and conversion suite

Hooklistener logo Hooklistener

The developer-friendly webhook inspector with real-time team collaboration, request replay, and permanent history.
  • Smallpdf Landing page
    Landing page //
    2023-09-21
  • Hooklistener Endpoints
    Endpoints //
    2025-12-24
  • Hooklistener Monitors
    Monitors //
    2025-12-24
  • Hooklistener Email Inbox
    Email Inbox //
    2025-12-24
  • Hooklistener CLI
    CLI //
    2025-12-24

Hooklistener is a modern tool designed for developers to test, inspect, and debug webhooks and HTTP requests efficiently.

While many webhook tools offer temporary disposable URLs, Hooklistener focuses on a professional workflow with persistence and collaboration at its core. It serves as a comprehensive middleware to visualize incoming data from services like Stripe, PayPal, Shopify, or your own APIs.

Key Features:

  • Real-time Inspection: Instantly view headers, body payloads (JSON, XML, Form), and query parameters in a clean, structured UI.
  • Team Collaboration: Unlike most alternatives, Hooklistener allows you to invite team members to shared workspaces so you can debug integrations together in real-time.
  • Request Replay: Easily retry failed webhooks or forward captured requests to your local development environment (localhost) for testing.
  • Permanent History: Your request logs are saved, allowing you to search and review past payloads without fearing they will disappear after closing the tab.
  • Granular Control: Filter and search through requests to find exactly what you need.

Hooklistener is the ideal alternative for developers who need more than just a temporary bin and require a reliable tool for building and maintaining API integrations.

Hooklistener

$ Details
freemium $5.0 / Monthly
Release Date
2024 December
Startup details
Country
Spain
Founder(s)
Adriรกn Carayol, Jeff Arese
Employees
1 - 9

Smallpdf features and specs

  • User-Friendly Interface
    Smallpdf provides a clean, intuitive, and easy-to-navigate interface, making it accessible for users of all technical levels.
  • Wide Range of Tools
    Offers a variety of tools for PDF editing, including compressing, merging, splitting, and converting PDFs to other formats.
  • Cloud Integration
    Seamlessly integrates with cloud storage services like Google Drive and Dropbox, allowing users to work directly with their files stored online.
  • Security
    Utilizes strong encryption and deletes files from their servers after one hour, ensuring user data is kept secure and private.
  • Cross-Platform Availability
    Accessible from various devices including desktops, tablets, and smartphones with responsive web design.
  • Free Tier
    Provides a free tier with limited features, which is suitable for occasional or basic users.

Possible disadvantages of Smallpdf

  • Limited Free Features
    The free version only allows for two tasks per day and places restrictions on larger files and advanced features, leading to potential inconvenience for frequent users.
  • Subscription Cost
    The premium subscription can be considered expensive for some users, particularly those who only need occasional PDF edits.
  • File Size Limit
    Even with a premium subscription, there are restrictions on the maximum file size that can be uploaded and processed.
  • Internet Dependence
    Requires an active internet connection to use most of its features, which can be a limitation for users with unreliable or slow connectivity.
  • Privacy Concerns
    Despite strong encryption, some users may still have reservations about uploading sensitive documents to an online service.
  • Limited Customization
    The range of customization options for certain tools may be limited compared to more specialized PDF software.

Hooklistener features and specs

  • Team Collaboration
    Real-time shared workspaces for multi-user debugging.
  • Data Persistence
    Permanent request history with no expiration time.
  • Request Replay
    Resend webhooks to localhost or external APIs easily.
  • Email Testing
    Capture and inspect emails sent to disposable @hookinbox.com addresses.
  • Inactivity Alerts
    Get notified immediately when your endpoints stop receiving traffic.

Analysis of Smallpdf

Overall verdict

  • Smallpdf is a reliable and efficient tool for managing PDF documents, suitable for both casual users and professionals. Its combination of versatility, ease of use, and security features makes it a strong contender in the realm of online PDF services.

Why this product is good

  • Smallpdf is considered good because it offers a wide range of PDF tools that are easy to use and accessible online. It provides functionalities such as PDF conversion, compression, editing, and signing, all within a user-friendly interface. This makes it an ideal choice for both individuals and businesses looking for efficient document management solutions. Additionally, it emphasizes security by ensuring encrypted file transfers, which is crucial for handling sensitive information.

Recommended for

  • Individuals who frequently work with PDFs and need a straightforward tool for conversions, compressions, or edits.
  • Students who need to annotate and organize their study materials in a PDF format.
  • Professionals who require a reliable tool for signing documents and collaborating with team members remotely.
  • Businesses looking for secure document management solutions with the flexibility of online access.

Analysis of Hooklistener

Overall verdict

  • Hooklistener is a solid choice for developers and teams that need reliable webhook testing, inspection, and debugging tools, offering a straightforward way to capture and analyze incoming HTTP requests.

Why this product is good

  • Provides an easy way to capture, inspect, and debug incoming webhooks in real time
  • Helps developers quickly diagnose payload and integration issues without complex setup
  • Offers a clean interface for viewing request headers, bodies, and metadata
  • Useful for testing third-party integrations before deploying to production
  • Saves development time by simplifying webhook troubleshooting

Recommended for

  • Developers building or integrating webhook-based systems
  • Teams testing third-party API and service integrations
  • QA engineers validating payloads and event delivery
  • Startups and small teams needing lightweight webhook debugging tools
  • Anyone troubleshooting incoming HTTP requests during development

Smallpdf videos

smallpdf tutorial video

More videos:

  • Review - Smallpdf Review
  • Tutorial - Smallpdf | How to do Unlimited Free Conversions ? | Hack for Smallpdf | Bypass limit of 2 conversion

Hooklistener videos

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

Add video

Category Popularity

0-100% (relative to Smallpdf and Hooklistener)
PDF Tools
100 100%
0% 0
Webhooks
0 0%
100% 100
PDF Converter
100 100%
0% 0
Developer Tools
0 0%
100% 100

Questions & Answers

As answered by people managing Smallpdf and Hooklistener.

Who are some of the biggest customers of your product?

Hooklistener's answer:

Agile SaaS Startups

E-commerce Development Agencies

Fintech Integration Teams

Independent API Developers

What makes your product unique?

Hooklistener's answer:

Hooklistener combines real-time webhook inspection with robust team collaboration and monitoring features. Unlike disposable tools, we offer permanent request history, shared workspaces for teams, email testing, and downtime alerts, making it a complete debugging ecosystem rather than just a temporary bin.

Why should a person choose your product over its competitors?

Hooklistener's answer:

Choose Hooklistener if you need reliability and teamwork. While competitors offer temporary URLs that delete your data upon closing the tab, Hooklistener provides a persistent workspace where history is saved. Itโ€™s built for professionals who need to replay requests, share debug sessions with colleagues instantly, and monitor their endpoints for silence or errors.

How would you describe the primary audience of your product?

Hooklistener's answer:

Our primary audience consists of Backend Developers, QA Engineers, and technical teams building integrations with third-party APIs (like Stripe, Shopify, or PayPal). It is ideal for agile teams that need to debug asynchronous events collaboratively without setting up complex local infrastructure.

What's the story behind your product?

Hooklistener's answer:

Hooklistener was born out of frustration. As developers, we were tired of using "disposable" webhook tools that lost critical data whenever we refreshed the page or closed the browser. We needed a tool that treated webhook debugging as a serious part of the development workflowโ€”with persistence, security, and the ability to work together as a team. So, we built it.

Which are the primary technologies used for building your product?

Hooklistener's answer:

Hooklistener is built on a modern, high-performance stack utilizing Real-time WebSockets for instant data delivery. We use a scalable cloud infrastructure to ensure data persistence and low-latency processing, ensuring that every webhook is captured and displayed the millisecond it arrives.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Smallpdf and Hooklistener

Smallpdf Reviews

Best Free Alternatives to Adobe Acrobat in 2026
Smallpdf is a well-known online PDF platform with a clean interface. It works entirely in the browser and integrates with Google Drive and Dropbox, making it convenient if you store files in the cloud. The free tier limits you to two tasks per hour and adds a watermark on some output files. Files are uploaded to Smallpdf's servers for processing.
Best Online Image Converters in 2026: Docpose.cloud Leads the Pack
Users highlight Docpose.cloudโ€™s reliabilityโ€”no failed conversions even on rare formats. CloudConvert gets praise for quality tweaks but frustrates with daily resets. iLoveIMG is loved for extras like AI, but free limits irk. Smallpdf suits PDF-image hybrids, less pure images. Convertio is straightforward but caps freebies quick.
Source: fileproinfo.com
Ever wondered why bank statements are always in PDF?
Platforms like iLovePDF and Smallpdf are among the most popular choices. They do a decent job for simple PDFs, but I quickly realized a few issues:
Source: medium.com
Top 10 PDF Converters for converting to or from PDF effortlessly
Smallpdf is one of the most well-known PDF converter tools online. Offering a simple, user-friendly interface, it allows users to convert files to and from PDF without any hassle. Smallpdf supports over 18 file types and integrates with Google Drive and Dropbox for easy cloud storage access.
The 13 Best Free PDF Editors (February 2024)
One of the quickest ways to add images, text, shapes, or your signature to a PDF is with Smallpdf. I find it extremely easy to use for those things, but I opt for one of the editors that top this list if I need to edit the text because this one won't do it for free.

Hooklistener Reviews

We have no reviews of Hooklistener yet.
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Social recommendations and mentions

Based on our record, Smallpdf seems to be more popular. It has been mentiond 38 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.

Smallpdf mentions (38)

  • OpenDataLoader: Safe, Open, High-Performance โ€” PDF for AI
    According to statistics from smallpdf.com, by 2025, there will be a massive 2.5 trillion PDF documents stored worldwide, and 290 billion new PDF documents will be created every year. - Source: dev.to / 7 months ago
  • Stirling-PDF: local web application to perform various operations on PDFs
    Smallpdf [1] probably deserves a mention here. Not OSS and not self-hosted, but Iโ€˜ve used it occasionally and it has always worked really well. When I was running an agency, we inherited their first office โ€“ very cool folks. [1] https://smallpdf.com/. - Source: Hacker News / over 2 years ago
  • Looking fore college ruled template to print
    And use this one to merge two single-page pdf to make a double side page. Source: over 2 years ago
  • PDF to Excel without O365/Adobe Acrobat?
    I don't have Office 365 for the "Get Data" option, nor do I have Adobe Acrobat. I've tried the smallpdf website but it came out a mess, possibly because my original spreadsheet had highlighted rows and lots of text in some of the cells. Source: about 3 years ago
  • 5 tips to improve your SaaS user onboarding
    Examples of companies doing this well: - SmallPDF users can convert or compress a limited number of files without an account โ€” turning users into advocates and customers once paid use cases comes along; - Freshline uses interactive product demos to help users self-educate and understand the value of their features, without a paywall or registration;. Source: over 3 years ago
View more

Hooklistener mentions (0)

We have not tracked any mentions of Hooklistener yet. Tracking of Hooklistener recommendations started around Jan 2025.

What are some alternatives?

When comparing Smallpdf and Hooklistener, you can also consider the following products

iLovePDF - Premium online PDF tool set

Hookdeck - Hookdeck makes it simple to build and deploy reliable, testable, and debuggable applications that rely on webhooks.

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.

Hookbridge - Hookbridge delivers webhooks quickly and securely โ€” send and receive with automatic retries, HMAC signatures, and durable storage.

Sejda - Split, merge and other powerful PDF tools.

Webhook.site - Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.