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CSR.plus
CSR generation API for developers. One curl, no OpenSSL.
Generate a Certificate Signing Request (CSR) with a single curl command — no OpenSSL installs, no config files, no signup, no API key. The CSR and private key are returned as JSON. Open-source and MIT-licensed, with example scripts in curl, Bash, Python, and JavaScript. Free with a per-IP rate limit. The same domain also hosts a CSR decoder, SSL check, and certificate expiry monitor. Never fight openssl req flags or a misformatted -subj value again.
Hi everyone! I built CSR.plus because I got tired of fighting openssl req flags every time I ordered a certificate — especially the -subj format and SAN handling. The tool generates a CSR and private key with one curl command, right in your browser, with no signup or API key. The API is also open source (MIT) with examples in curl, Bash, Python, and JavaScript. I'd love feedback on the API design, docs, or anything else — happy to answer questions here!
About CSR.plus on Product Hunt
“CSR generation API for developers. One curl, no OpenSSL.”
CSR.plus was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #147 on the daily leaderboard. Generate a Certificate Signing Request (CSR) with a single curl command — no OpenSSL installs, no config files, no signup, no API key. The CSR and private key are returned as JSON. Open-source and MIT-licensed, with example scripts in curl, Bash, Python, and JavaScript. Free with a per-IP rate limit. The same domain also hosts a CSR decoder, SSL check, and certificate expiry monitor. Never fight openssl req flags or a misformatted -subj value again.
On the analytics side, CSR.plus competes within Open Source, Developer Tools, GitHub and Security — topics that collectively have 630.5k followers on Product Hunt. The dashboard above tracks how CSR.plus performed against the three products that launched closest to it on the same day.
Who hunted CSR.plus?
CSR.plus was hunted by Steve. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of CSR.plus including community comment highlights and product details, visit the product overview.
Steve