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🎉 Celebration

🎵 Music

🎹
MusicFree

Online Piano

Play a piano right in your browser — click, tap or type. Change the timbre and volume, no sign-up.

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🪗
MusicFree

Online Harmonium

A real reed keyboard — press and the note holds, warm and steady. Latch a drone, add a sruti, see sargam.

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🎼
MusicFree

Sargam Notation Writer

Write a composition in sargam, hear it, and export a printable sheet, a PNG or a MIDI file. Share as a link.

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🎵
MusicFree

Staff Notation Editor

Write sheet music on a real staff — clefs, key & time signatures, notes, rests. Hear it, print, export PNG/MIDI.

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🎸
MusicFree

Online Instruments

One keyboard, eight instruments — piano, organ, guitar, strings, flute, synth and marimba.

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🥁
MusicFree

Drum Machine

Tap the pads or program a beat on the 16-step sequencer, set the tempo and hit play. No downloads.

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🪘
MusicFree

Percussion Pads

Tap to play congas, bongos, tabla, djembe, cowbell, shakers and a full drum kit — three kits.

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🪘
MusicFree

Online Tabla

Strike the bāyāñ and dāyāñ to sound the bols (Na, Tin, Dha, Dhin), tune the drum, play compound bols.

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🥁
MusicFree

Online Mridangam

Play the Carnatic barrel drum — sound the sollus (Nam, Din, Thom, Dheem), tune it, and loop Carnatic talas.

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🎶
MusicFree

Online Tanpura

A continuous tambura drone for riyaz — set your Sa, choose Pa/Ma/Ni tuning and pace, and loop.

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🎵
MusicFree

Online Shruti Box

A sruthi petti drone — set your Sa, switch on the swaras, and hold a continuous reed drone.

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⏱️
MusicFree

Metronome

A precise metronome with tap tempo, accents and taal presets, plus an optional lehra loop.

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🎼
MusicFree

Raga & Scale Player

Pick a raga — Yaman, Bhairav and more — hear its aroha and avaroha, and play its swaras.

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🕉️
MusicFree

72 Melakarta Ragas

Learn the 72 Carnatic parent ragas — hear each scale, see its swaras, and browse the 12 chakras.

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🎶
MusicFree

Carnatic Ragas Player

Play popular Carnatic ragas — Mohanam, Kalyani, Kambhoji and more — hear arohana & avarohana over a drone.

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🎯
MusicFree

Online Tuner

Play a clean reference tone for guitar, bass, violin, ukulele or chromatic and tune by ear.

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🎹
MusicFree

Chord Player

Pick a root and chord type, hear it block or arpeggiated, and play common progressions in any key.

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👂
MusicFree

Ear Trainer

Hear a random interval or chord and guess it — instant feedback and a running score.

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🎧
MusicFree

Song Remixer

Upload a track and turn it into a slowed + reverb, nightcore, 8D or lo-fi remix, then download.

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🎛️
MusicFree

DJ Turntable

Load two songs onto a real DJ deck — scratch, boost the EQ, ride the pitch and blend with a crossfader.

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🖼️ Image & Photo

✍️ Text & Writing

🔊 Audio & Voice

🧰 Developer

🧩
DeveloperFree

JSON Formatter

Beautify, minify and validate JSON with clear line and column error reporting, plus sort keys.

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🔤
DeveloperFree

Base64 Encoder

Encode and decode Base64 for text, and convert images to and from Base64 data URIs.

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🔗
DeveloperFree

URL Encoder / Decoder

Percent-encode or decode URLs and query strings — paste text and get a safe, escaped result.

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🔒
DeveloperFree

Hash Generator

Generate SHA-256, SHA-1, SHA-384 and SHA-512 hashes of any text, computed locally.

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🆔
DeveloperFree

UUID Generator

Generate random v4 UUIDs (GUIDs) one at a time or in bulk — copy them with a tap.

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🕒
DeveloperFree

Unix Timestamp Converter

Convert a Unix epoch timestamp to a human date and back — seconds or milliseconds, local and UTC.

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🧪
DeveloperFree

Dummy Data Generator

Generate lorem ipsum and fake test data — names, emails, phones and addresses — as CSV or JSON.

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🔣
DeveloperFree

Regex Tester

Test regular expressions with live match highlighting, capture groups, flags and a replace preview.

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🎫
DeveloperFree

JWT Decoder

Decode a JSON Web Token — read the header, payload and human-readable expiry. Nothing uploaded.

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DeveloperFree

Cron Expression Helper

Explain any cron schedule in plain English and see the next run times, with handy presets.

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🔷
DeveloperFree

JSON to TypeScript

Turn JSON into TypeScript interfaces — nested types, arrays and optional fields, instantly.

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🔢
DeveloperFree

Number Base Converter

Convert integers between binary, octal, decimal, hex and any base — live, with big-number support.

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🏷️
DeveloperFree

HTML Entity Encoder

Escape text into HTML entities or decode them back — named or numeric, live in your browser.

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🗂️
DeveloperFree

JSON ⇄ CSV Converter

Convert a JSON array to CSV and CSV back to JSON — quoted fields, custom delimiters, live.

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📝
DeveloperFree

Markdown Previewer

Write Markdown and see a live preview — headings, lists, tables, code — then copy the HTML.

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🌗
DeveloperFree

Color Contrast Checker

Check the WCAG contrast ratio between two colours — AA/AAA pass or fail, with a live preview.

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