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The 7 best sourcing tools and plugins for recruiters

Life as a recruiter isn’t easy nowadays. Due to strong economic growth in the recent years, the current job market is a tough place for recruiters to find top talent. Competition is huge and being able to find and contact talent faster is therefore crucial for your success. Luckily, there are several tools and plugins to help with finding new candidates. In this article, we will outline the 7 best sourcing tools for corporate and agency recruiters to boost their productivity and hires.

Hunter is a tool that can be used to discover email addresses of potential interesting candidates. It primarily works with work email addresses. The way it works is quite simple. You put in the web address of the company you are looking to recruit candidates from. Hunter now gives you a list of all email addresses it has found. It also shows you what the most common email pattern is. This is the main reason why I use hunter as a recruiter. It helps me to identify different email structures. So, whenever I find a candidate from that company, I immediately know their work email address as well.

CV timeline plugin for LinkedIn

This is one of my favorite tools for recruiters to use. As most of my colleagues, I spend quite some time on LinkedIn. Scrolling through hundreds of profiles a day isn’t really that exciting and can take up a lot of valuable time. CV timeline is a plugin for Google Chrome that visualizes a LinkedIn profile in a clear timeline view. For recruiters, this plugin will help you to discover a candidate’s total work experience and possible gap years at a glance. But this is not where it stops. It even shows the experience of the candidate split out to industry, keywords/skills and company size. The CV timeline plugin has made my life as a recruiter easier by allowing me to review more profiles in a shorter amount of time. Besides that, it just looks awesome!

CV Timeline is free to use in LinkedIn classic and you can view up to 300 profiles per month. For most recruiters their starter or pro plan is more appealing. It works with LinkedIn Recruiter and provides respectively 1000 and 2000 profile views per month.


Lusha is a plugin for Google Chrome that helps you in finding contact information. It positions itself as a tool to find B2B contact details. It is, however, a very interesting tool for recruiters as well. Whenever you visit a LinkedIn profile with Lusha enabled, it will search the internet for contact details of that person. When it has found something, you can unlock their phone number and/or email by spending credits on it. Free accounts get 5 credits every month. If you are serious about cold acquisition, you would want to upgrade to their paid plan which offers more credits every month.

I have had mixed experiences with Lusha. Sometimes it would find both email and phone numbers of the profile I was viewing, but lately the results have been disappointing. It works best on young graduates and the more senior candidates, as they tend to have been more active on the internet somehow.

Recruit Robin

This is a new tool I recently discovered on LinkedIn. It is an AI sourcing tool made for recruiters to automate their sourcing process. All you must do to get started is to share your vacancy with Recruit Robin. The tool will automatically scan and analyze your vacancy and create keywords which are important for the job. Recruit Robin allows you to modify, add or exclude keywords for when their AI tool fails to properly analyze your vacancy.

Now, when you have set it all up Recruit Robin is ready to go. It will now automatically search different platforms (e.g. LinkedIn, Monsterboard) to source candidates that match with keywords from the vacancy. You will now receive new candidates (between 15 and 20) every day. For each candidate you have the option to choose to either reject or accept them. This is also where the AI component comes in play. Recruit Robin learns from every candidate that you reject or accept and uses this information to make better matches. It is a paid platform with a free 14-day trial available.

Dux soup

Dux Soup is a plugin for Google Chrome that focusses on LinkedIn automation. It can automatically visit LinkedIn profiles, endorse their skills, follow their activities and send personalized messages. It is even possible to create so called ‘drip campaigns’ where Dux Soup sends messages according to rules you have set till the candidate or prospect responds. This tool operates in a kind of grey area when it comes to LinkedIn, although Dux Soup itself says it stays within the limits of LinkedIn.

I certainly see a lot of added value in this LinkedIn automation plugin. It takes away a lot of the hard work and therefore makes your life as a recruiter easier. Looking at LinkedIn’s policies regarding automation and bots, I am not sure if Dux Soup is exempted from those. If you plan to use it, make sure not to be too aggressive and keep your messages personalized.

Glossary tech

This is a free Google Chrome plugin that is a little bit different from the rest of the plugins I have mentioned in this article. Glossary Tech focusses on the technical knowledge of recruiters and allows you to learn tech on the job. When sourcing profiles on LinkedIn it will highlight technical terms within profiles and show a short description of what that term means. It also adds them to different technical categories such as frontend, backend and DevOps.

Although this plugin will not yield immediate results in the terms of more candidates or hires, I think it is a great addition for most recruiters. Being able to understand the expertise and knowledge of candidates better is a big win in the long term.

Crystal Knows

Last but certainly not least, is this plugin called Crystal Knows. Basically, this plugin scans any LinkedIn profile and creates an in-depth analysis of their personality along with matching characteristics. The idea of this plugin is to give you tips and tricks on how to best communicate with the person you are viewing. It gives you an advantage over others by giving you insights and personalized advice to communicate effectively with different types of people. It is an interesting take on recruitment and makes the process a bit more personal.


All these tools have a clear purpose and surely can be of added value to most corporate and agency recruiters. Most tools focus on retrieving contact details or automating sourcing activities. But as we have seen in this post there is also a growing pool of tools that focus on different aspects of the sourcing process.

About Author

Hirebel is focused on providing you with valuable insights on how to improve your career and how to get the most out of your working life. Occasionally there are sidesteps to topics related to new technologies that enable people to achieve their (life) goals.

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