JSON Formatter

Format, validate, beautify, and minify your JSON data structures in real-time.

Source String Sequence
Parsed Compilation Result
Instant Real-time CompilesOur developer tools execute exclusively in private sandboxed threads nested inside your local browser instance. Your raw text strings, keys, or proprietary data structures are never logged or exported to any external server telemetry, securing supreme privacy and offline availability.

Explore Additional Utilities

Wick size ↔ container diameter — burn pool coverage

Find recommended wick sizes based on container diameter, wax type, and burn pool coverage guidelines.

candle-making

dB gain ↔ power ratio — amplifier and antenna specs

Convert logarithmic decibels (dB) to linear power and voltage ratios, or translate absolute power in Watts to dBm.

telecommunications

Shrinkage allowance — finished size ↔ cut size

Calculate required pattern cut sizes from finished garment specs or expected post-wash sizes.

textile-manufacturing

Concrete strength — MPa ↔ psi ↔ N/mm²

Convert concrete compressive strength between MPa, psi, and N/mm². View typical application guidelines and concrete classes.

masonry-concrete

Anchor Scope Calculator

Calculate the recommended anchor rode chain and rope lengths based on water depth, vessel height, and environmental conditions.

unit

Audio File Size & Sample Rate

Compute uncompressed audio files size based on sample rate, bit depth, and duration.

unit

Numerical aperture ↔ acceptance angle — fiber coupling

Determine light coupling capabilities, supported modes, V-numbers, and acceptance cone widths for optical optical fibers.

optics-laser

Musical Note ↔ Frequency

Translate standard musical notes and octaves to precise audio hertz frequencies.

unit

RAID capacity — disk count + size + type → usable space

Calculate usable capacity, parity overhead, and fault tolerance strategies for RAID 0, 1, 5, 6, and 10.

networking

CIDR notation ↔ subnet mask ↔ host count

Calculate subnet masks, wildcard masks, host counts, and subnet parameters from CIDR prefixes or custom subnet masks.

networking

Flesch-Kincaid Reading Level

Calculate readability scores and Flesch-Kincaid school grade levels for any input text in real-time.

devtools

Engineering Slope & Gradients

Compare elevation grades, percentage slopes, and corresponding degrees.

unit

Battery capacity — Ah ↔ Wh ↔ days of autonomy

Convert between Amp-hours (Ah) and Watt-hours (Wh) and calculate battery bank backup days of autonomy based on loads.

renewable-energy

Duration Converter

Convert time intervals seamlessly between weeks, days, hours, minutes, and seconds.

unit

Spring rate — lb/in ↔ N/mm — suspension setup

Convert suspension coil spring stiffness between lb/in and N/mm. Estimate coil spring rates using wire diameter, coil diameter, and active counts.

automotive

Acoustic Decibel Ratio

Formulate sound logarithmic decibel power ratios and acoustic pressure variations.

unit

URL Encoder & Decoder

Safely encode illegal URL string sequences or decode clean string paths.

devtools

Asset Depreciation & Insured Value

Calculate asset depreciation over time based on age, condition, actual cash value (ACV), and salvage values for insurance coverage.

devtools

Semitones & Pitch Intervals

Convert pitch ratios to semitones and cents, and calculate frequency intervals.

unit

Hardness converter — Rockwell ↔ Brinell ↔ Vickers

Convert between Rockwell C, Rockwell B, Brinell, and Vickers scales with approximate tensile strengths for steel materials.

welding-metallurgy