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120 free browser-based developer utilities. No sign-up required.

Which is more popular?
Based on our record, Levels.fyi seems to be more popular. It has been mentioned 2290 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | levels.fyi | devtoolstack.io |
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Recommended for
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How to Negotiate Your Tech Salary Simulation ft. Levels.fyi
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Recommendations tracked on public social media and blogs since March 2021.


I was talking with a great-sounding few-person early startup (nice people, non-evil business, interesting work, etc.), and they wanted me to fill a highly-skilled role... in-office in a VHCOLA, for $110K and "0.5%" in usual option... - Source: Hacker News / 9 months ago
Here’s some resources: - https://levels.fyi - Reddit.com/r/cscareerquestions - Leetcode.com $200k is quite achievable both remote, IF you have experience. If you are brand new to the industry things have shifted and new grads are having... - Source: Hacker News / about 2 years ago
Nvidia is obviously an exception. That’s like saying working at startups will lead to higher monetary rewards because “look at early Facebook employees”, whereas your expected pay after 4 years at a startup is almost always lower than if... - Source: Hacker News / over 2 years ago
Tracking DeveloperToolStack since Aug 2026.
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