tools.antonnovikov.com
DevOps tools
17 tools for DevOps and sysadmin work — they run entirely in your browser, nothing is sent to a server.
01Network4
- IP Subnet CalculatorNetwork, broadcast, host range, mask — IPv4/IPv6.
- DNS Lookup & Propagation CheckerA/AAAA/MX/TXT records, compared across resolvers.
- IP Geolocation & ASN LookupCountry, city, ISP and ASN for any IP.
- Cloud Provider IP RangesSearch AWS/GCP/Cloudflare ranges by IP or region.
02Crypto & Auth5
- JWT DecoderDecode header & payload, verify HS256 signatures.
- Hash GeneratorMD5, SHA-1, SHA-256, SHA-384, SHA-512 — live.
- htpasswd / bcrypt Generatorbcrypt hash + ready-to-use htpasswd line.
- WireGuard Key GeneratorCurve25519 keypair + preshared key.
- TLS Certificate DecoderSubject, issuer, SAN, validity, fingerprint.
03Encoding4
- Base64 & URL Encoder/DecoderBase64 and URL encode/decode, both directions.
- YAML ↔ JSON ConverterConvert Kubernetes manifests, both directions.
- .env ↔ YAML/JSON Converter.env ↔ YAML/JSON, both directions.
- Docker Compose → Kubernetesdocker-compose.yml → Deployment + Service YAML.
04Generators1
- UUID GeneratorRandom UUID v4 or time-ordered UUID v7.
05Time2
- Unix Timestamp ConverterTimestamp ↔ date, with a live clock.
- Cron Expression ParserPlain-language description + next 10 run times.
06Text & Data1
- Regex TesterLive match highlighting and capture groups.