Sanitize Docker Compose YAML environment variables, database connection strings, and registry credentials 100% locally in browser RAM with zero cloud upload risk.
Process and sanitize Composeshield payloads 100% privately inside browser memory
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Supports CSV, JSON, TXT, XML & Log Streams
sed -E 's/(password|secret|token|api_key)[[:space:]:=]+[^[:space:]"\x27]+/\1: [REDACTED]/Ig' docker.yaml⚠️ Why Naive CLI / Regex Fails: Hand-written sed/awk regex corrupts YAML/TOML indentation, misses Base64 secrets, and fails on multi-line blocks.
🛡️ Pre-LLM & Ticket Safety: Sanitize Docker Compose (YAML (docker-compose.yml / compose.yaml)) in local browser RAM before pasting into ChatGPT, Claude, Cursor, or Jira support tickets.
Core capabilities built into ComposeShield Studio
Seamlessly parses both YAML dictionary (`KEY: value`) and list (`- KEY=value`) environment syntaxes to scrub passwords, API keys, and JWT secrets without breaking YAML structure.
Detects embedded credentials inside `DATABASE_URL`, `REDIS_URL`, `AMQP_URI`, and `MONGO_URI` connection strings, masking user:password segments while preserving protocol and port structure.
Scans multi-line `command:` and `healthcheck.test` arrays for `--password`, `--token`, `-u user:pass`, and Bearer headers that standard env scrubbers miss.
Your production container topology and credentials never leave your device. Every sanitization pass executes strictly in volatile browser memory.
Zero configuration, zero cloud server dependencies, instant execution.
See why merchants and prosumers switch from monthly subscriptions to our local buyout.
| Feature / Metric | 🛡️ ComposeShield Studio | ☁️ Cloud SaaS (Spacelift) |
|---|---|---|
| Data Custody & Execution Boundary | 🛡️ 100% Local Browser RAM (Zero Network Upload) | ☁️ Cloud SaaS Control Plane & External State Upload |
| Compose `environment:` Map & List Parsing | 🛡️ Native Dual-Syntax (`KEY: val` & `- KEY=val`) Scrub | ☁️ Requires Proprietary Context Mounts & Policies |
| Embedded DB URI & `command:` Flag Redaction | 🛡️ Automatic Postgres/Redis URI & CLI Flag Masking | ☁️ Manual Rego Policy Authoring Required |
| Offline Air-Gapped Workstation Deliverable | 🛡️ Included Self-Contained HTML PRO Appliance | ☁️ Not Available (Requires Cloud SaaS Connectivity) |
Eliminate vendor lock-in and cloud upload security risks.
Why pay monthly recurring SaaS fees for simple docker compose tools? Switch to ComposeShield Studio for a single $19 buyout.
Spacelift uploads private data to cloud servers. We process 100% locally on your machine.
Process large docker compose files instantly without waiting for cloud server roundtrips.
Deep technical breakdown driving our client-side productivity engine.
Running `docker compose config` interpolates all `.env` variables directly into plaintext YAML. Sharing that output in a GitHub issue or Slack thread exposes every live database password and API key.
Docker Compose supports two distinct YAML formats for `environment` and `labels`. Structure-aware scrubbing ensures quotes, colons, and equal signs remain valid for `docker compose config -q`.
Replacing sensitive values with keyed SHA-256 prefixes lets DevOps engineers verify whether staging and production Compose stacks reference the same secret without revealing plaintext.
Instead of paying $250/mo ($3,000/yr) for Spacelift cloud runners just to sanitize and audit container stack definitions, deploy an air-gapped local browser appliance for a $19 one-time buyout.
No monthly bills. No sneaky price hikes. Pay once, use forever.
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Everything you need to know about privacy, local memory execution, and buyouts.
ComposeShield Studio parses each service block line by line in local browser RAM, masking sensitive scalar values in `environment`, `command`, and `labels` while preserving exact YAML indentation spaces, comments, and keys so `docker compose config` passes cleanly.
Never. All YAML parsing, credential detection, and hash masking execute 100% inside your local browser RAM. Zero bytes of your container stack configuration ever leave your workstation.
Yes. The engine natively recognizes both YAML sequence (`- POSTGRES_PASSWORD=secret`) and mapping (`POSTGRES_PASSWORD: secret`) formats across Compose v2, v3, and the modern Compose Specification.
Unlike Spacelift ($250/mo), which requires recurring cloud subscriptions and uploading infrastructure state to an external control plane, ComposeShield Studio runs 100% in local browser RAM for a $19.00 one-time buyout (or €3.99 24h pass) with a 14-day refund guarantee.
Yes. It automatically detects embedded user:password credentials inside `postgres://`, `mysql://`, `redis://`, `mongodb://`, and `amqp://` connection URIs, replacing the secret portion while keeping host, port, and database names intact.