Open Source 360 Feedback Platform

A 360-degree feedback session is where an employee gets feedback from peers, managers, and if applicable, their direct reports. This gives you a better perspective on their performance and areas to develop. When you pair this with a self-assessment, it shows you where there might be gaps. Maybe you're being too hard on yourself in some areas, or too confident in others. Those mismatches are where the real growth opportunities are.

Reviewers use token-based links, and reports aggregate feedback by category with configurable thresholds. Responses retain a token reference, which may link to an invitation email. Confidentiality depends on invitation method, permissions, thresholds, and feedback content; it is not guaranteed against administrators with database access.

Runs comfortably on a 1 GB VPS for typical team sizes (512 MB minimum). Blik runs on systems supporting Docker; the Docker Compose setup includes a PostgreSQL database.

There are currently 4 default questionnaires to choose from; ranging from relatively quick & easy to very specific, detailed and advanced. You can also create your own questionnaires, but these 4 should get you started without having to think of all these questions up front.

Yes! The application comes with 4 default questionnaires for different roles and needs, and you can create your own with no restrictions. We have multiple types of answer modes like Likert scales, multiple choice, and free text. The questionnaires can contain multiple segments which work well on mobile devices too.

EU hosting and self-hosting do not automatically establish GDPR compliance. Blik provides export and deletion tools to support your obligations. Your organization remains responsible for lawful processing, configuration, access controls, retention, and compliance processes.

Blik is AGPL-3.0 software you can self-host free, with a one-time hosted review round for €19 or managed EU hosting subscriptions from €49/month for up to 50 employees. Lattice, Culture Amp, and 15Five offer broader hosted performance-management suites with different modules and pricing. Compare features, deployment, and dated vendor prices.

Blik supports almost all email providers. We allow you to use your own credentials or even your own Gmail address.

Yes, it's actually implicit. Your progress is saved on every step. Reviewers each have their own unique URL, and this allows them to come back later and continue where they left off safely and easily.

We try to keep anonymity in mind here, so we have a default (changeable) threshold of required answers in order to not be able to take any one response from someone directly. For super small teams you can just set this value to 1 and you will see all answers always. This setting also doesn't apply to managers, who I believe usually provide feedback which you can (should?) act upon.

A report gets triggered either by all invited members finalizing the questionnaire, or by an application admin who closes the report manually. The report itself shows an executive overview plus a detailed in-depth view of all the questions and the aggregated answers per group (self, peers, managers). A report can be generated at will even if some reviewers haven't finished answering all their questions yet. It takes whatever they've filled out so far and leaves the rest of the questions blank.

Probably yes, but we don't have a good import and haven't tested this. We didn't end up using any other software, so if you can provide us with samples from other tools, we can try to make this work.

No, you can't find Blik in the app stores, but our web based application works across all modern mobile devices. Benefit is that this also doesn't require installation or setups on user devices.

AGPL-3.0 (GNU Affero General Public License v3.0). This license grants unlimited rights to use, modify, and deploy Blik commercially or privately. Key requirement: if you host a modified version accessible over a network, you must make your source code changes available. This ensures community improvements (like LDAP integration or SSO support) benefit all users. For private internal deployments, no code sharing is required.

The repo's issues and discussion tabs are where the support will most likely be given and found. I try to keep things documented that are important too. Enterprise customers will receive priority updates and a more direct line if they prefer.

Yes, you can. The AGPL license allows you to white label this if you want to. Most things are pretty easy to modify or built in as variables already.

Any Django-compatible database is supported. I recommend using Postgres 15 or higher. The built in standalone Dockerfile uses SQLite to make things easier for anyone to get started from the get go.

This depends on my time and paid users as well as feedback from the community. I hope there will be many community updates, which eventually will lead to other maintainers as well. If you self-host you should probably check in every once in a while. There is no mechanism for this yet. For hosted customers, updates go live immediately after a few minutes when I push them.

Yes. Cycles are lightly implemented, meaning there is no enforcing of every reviewee having to be on the same cycle. There are no limits on active cycles and no problem having multiple people in different cycles simultaneously.

The report after the questionnaire is finished contains an executive overview that highlights gaps between how you see yourself and how others see you. It spots things like impostor syndrome or undervaluation of your own contributions. You'll see key strengths and weaknesses, plus a bar chart showing self vs others comparison. It also contains a radar chart with the different layers (self, peers, managers) averaged responses. The insights differ per person and questionnaire of course, but in general it should provide actionable insights.

Blik includes a REST API with Bearer token authentication and four HMAC-signed webhook events. Generous limits: 1,000 requests/hour per token; 100/hour for anonymous requests. Open interactive API documentation.

You can share a link that generates reviewer tokens or send email invitations. Email invitations can associate a token with an email address, and responses retain their token reference. Shared links do not support email reminders. Explain your invitation method and confidentiality limits to reviewers.

Yes. You get a full account and organization JSON export. This makes it easy to back up your data or migrate to another system if you need to.

Yes. The Single Round is €19 once and covers a hosted feedback round for up to 10 employees, with no subscription and no charge for reviewers. See what's included.

The €49/month plan covers up to 50 employees. Enterprise is €199/month for up to 200 employees and adds priority support and an SLA with uptime commitment. Contact us for larger teams.

All data will be removed after 30 days. Make sure you export your data before canceling if you want to keep it.

14-day free trial — credit card required; cancel before it ends and you won't be charged.