Tools
Paste it. See it. Copy it. Converters, calculators, and visualizers that never leave your tab.
Browser tools Converters, calculators, and visualizers for the work you already do — JWTs from a gateway log, a curl from DevTools, a hash ring you need to explain tomorrow. No account. No upload. Strip IPs, emails, and keys before you share a log. Many tokens from a log. exp, claims, HMAC status. One payload → TypeScript, Go, Rust, Pydantic, Zod. curl → reqwest, net/http, HttpClient, URLSession, PowerShell. JSON lines, ERROR/WARN, filters, folded stacks. Hash ring, virtual nodes, watch keys move. Dual-write vs transactional outbox. Mask PII in queries with stable fakes you can still run. RFC 4122 v4 UUIDs, one or a handful, copy-ready. Sortable distributed IDs and a Snowflake decoder. Decode one JWT header and payload locally. Encode and decode UTF-8, including URL-safe Base64. MD5, SHA-1, SHA-256, SHA-512 as you type. Beautify, minify, validate with line and column. Diff two JSON documents side by side. Kubernetes manifests and configs, both directions. Typed Go structs with json / bson tags. Add json, bson, and validate tags to structs. Pretty-print SQL with keyword casing. Beautify or minify XML. Compare two XML documents after normalization. Quick match highlight with flags. Groups, then JS / Python / PHP / Go / Java / Rust snippets. Partitions from throughput, consumers, and retention. RAM for keys, structures, fragmentation, replicas. WiredTiger index size for compound, multikey, TTL. Approximate B-tree secondary index size. Pod requests into a node count. Shard count from storage and QPS. DAU into average and peak QPS. Egress, origin fetch, and savings. AWS API Gateway monthly spend. Lambda compute and request costs. N/W/R writes, reads, and replica failures. Partition assignment, rebalance, lag. Key → partition → leader → ISR. Terms, timeouts, majority votes. CP vs AP under a network partition. Prepare/commit vs compensations on failure. Token bucket, leaky bucket, sliding window. Round-robin, least-connections, weighted. LRU vs LFU vs TTL on the same pattern. Inserts, queries, estimated false positives. Diff replicas, sync only mismatched leaves. Happens-before vs concurrent updates. Epidemic spread of membership state. Drop, block, or slow down a fast producer. Full / equal / decorrelated jitter vs herds. Retries with and without an idempotency key.Paste it. See it. Copy it. Nothing leaves the tab.
Start here
Log Anonymizer / PII Scrubber
Bulk JWT Inspector
JSON/YAML to Type Definitions
cURL to Native Code
Log File Anomaly Viewer
Consistent Hashing Visualizer
Outbox Pattern Visualizer
SQL Query Anonymizer
IDs, tokens, encoding
UUID Generator
Snowflake / ULID ID Generator
JWT Decoder
Base64 Encoder Decoder
Hash Generator
Text, JSON, SQL, YAML
JSON Formatter / Validator
JSON Comparer
YAML ↔ JSON Converter
JSON to Go Struct Converter
Go Struct Tag Generator
SQL Formatter
XML Formatter
XML Comparer
Regex Tester
Regex Visualizer & Test Bench
Logs, HTTP, CSS
Capacity and cost
Kafka Partition Calculator
Redis Memory Estimator
MongoDB Index Size Estimator
Database Index Size Estimator
Kubernetes Resource Calculator
Sharding Calculator
QPS Estimator
CDN Bandwidth Calculator
API Gateway Cost Calculator
AWS Lambda Cost Calculator
Distributed systems visualizers
Quorum NWR Visualizer
Kafka Consumer Group Visualizer
Kafka Produce Path Visualizer
Raft Leader Election Visualizer
CAP Theorem Visualizer
Two-Phase Commit vs Saga Visualizer
Rate Limiting Visualizer
Load Balancer Visualizer
Cache Eviction Visualizer
Bloom Filter Visualizer
Merkle Tree Sync Visualizer
Vector Clocks Visualizer
Gossip Protocol Visualizer
Backpressure Visualizer
Exponential Backoff & Jitter Visualizer
Idempotency Key / Dedup Visualizer