A little help for
software engineers.
Inspect, encode and transform without sending a request. Your collection is a starting point; all tools remain available.
JSON formatter
Pretty-print valid JSON with two-space indentation.
JSON minifier
Remove optional whitespace from valid JSON.
JSON validator
Check JSON syntax and show the top-level type.
Sort JSON keys
Recursively sort object keys for easier inspection.
JSON to YAML
Serialize JSON as readable YAML.
YAML to JSON
Parse YAML safely with bounded aliases.
JSON key list
List top-level object keys.
JSON value list
List top-level object values.
JSON entry pairs
Convert a top-level object into key-value pairs.
JSON structure inspector
Report types, depth, node counts and array sizes for JSON.
JSON path list
List leaf values with escaped RFC 6901 JSON Pointer paths.
JSON flatten to pointers
Flatten leaf values into a map keyed by JSON Pointer.
Custom password generator
Generate passwords from your chosen alphabet using unbiased cryptographic randomness.
Secure random token generator
Generate random bytes and format them as hexadecimal or Base64url tokens.
Password composition checker
Inspect length, Unicode characters, repeated runs and character classes locally.
Random password entropy calculator
Calculate entropy for an independently and uniformly random password alphabet.
SHA-384 text hash
Compute the SHA-384 digest of UTF-8 text.
SHA-256 file checksum
Compute a SHA-256 checksum of a local file.
Download time estimate
Estimate an ideal transfer duration from decimal file size and a stated link rate.
Video file size estimate
Estimate payload size from combined bitrate and duration.
Uncompressed audio size
Estimate PCM payload size from sample rate, bit depth, channels and duration.
Raster memory estimate
Estimate raw raster pixel-buffer memory without file compression.
Image print size
Calculate physical print dimensions from pixel dimensions and a selected density.
Screen pixel density
Calculate diagonal pixel density from screen resolution and physical diagonal.
Word counter
Count words, lines and Unicode characters.
Character counter
Count code points, graphemes and UTF-8 bytes.
Reading time
Estimate reading time from your word count.
Uppercase converter
Convert text to uppercase.
File SHA-256 checksum
Compute a SHA-256 file checksum locally.
Text file generator
Download plain text as a UTF-8 file.
JSON file generator
Validate and download JSON as a formatted file.
CSV file generator
Normalize CSV and neutralize spreadsheet-formula prefixes.
Text QR code
Create a QR code containing plain text.
URL QR code
Create a QR code for an HTTP or HTTPS address.
WiFi QR code
Make a WiFi connection code with escaped credentials.
Email QR code
Encode an email recipient and subject.