Small, sharp tools for people who live in the terminal
They share one idea: scrub the secrets out of the artifacts you share — recordings, notebooks, Terraform state — and keep your docs honest. They run right in your browser.
The hosted tools run entirely client-side — your file never leaves your machine.
Try one in your browser
No install, nothing uploaded.
Redact a recording
Scrub API keys, tokens & .env values from a .cast, .svg, Jupyter .ipynb or Terraform .tfstate — in your browser.
.cast.svg.ipynb.tfstateREADME check
Find the shell commands in a README and see which ones a CI run would execute.
README.mdReel
Type a few lines and get a short video: your lines as on-screen captions, as a WebM file. Your browser reads them aloud while it plays.
WebMCommand-line versions
These are not published as packages. If you want one for your CI, ask us at io@deemwar.com.
castshield
Redact secrets from an asciinema .cast recording before you share it.
svgshield
Redact secrets from an already-rendered terminal-recording .svg.
nbshield
Redact secrets from a Jupyter .ipynb — in cells AND their outputs.
tfstate-mask
Redact secrets from a Terraform .tfstate — honors Terraform's own sensitive_attributes.
readmecheck
Run a README's shell blocks in CI so your quickstart can't silently rot.
Want this in your own CI?
We build these because we needed them. If your team wants secret-redaction or doc-testing wired across your own CI — or a tool like these built for your stack — that's what we do at deemwar.
Talk to deemwar →