jd.Edit — Record, Edit, Play. On your iPhone.

01

Record

The Record tab turns your iPhone into a recorder: uncompressed WAV at 44.1 kHz and 24-bit — source material without compromise.

✓Pick any input: built-in microphone, headset, Bluetooth — and USB audio interfaces in true stereo
✓Your input choice is remembered; iOS doesn't get to switch back to the headset behind your back
✓Monitor with real-time spectrum (50 Hz–16 kHz), L/R level meters and a clipping indicator
✓Recordings land straight in the library, ready to cut

02

Edit

The heart of the app: one waveform, precise cuts — like a desktop sample editor, designed for the touchscreen.

✓Two-finger zoom down to individual wave cycles, fluid thanks to a peak pyramid
✓Selection mode via double tap: drag out a range, audition it, delete, trim, silence
✓No clicks: zero-crossing snap and a 2 ms micro-fade at every cut edge
✓Freely shapeable fade curves with seven presets — drag, add and remove points
✓Normalize to peak level or loudness (RMS) with pre-measurement and clipping protection
✓Non-destructive with unlimited undo — the original file stays untouched

Export with an in-house MP3 encoder

WAV, AIFF, CAF, Apple Lossless, AAC — and MP3 via jd.Codec, the in-house encoder calibrated against LAME that iOS doesn't ship: CBR, VBR (V0–V9), ABR, joint stereo, sample-accurate gapless. Bit depth and dither to taste, a size estimate before writing, and “Compress” right from the file list.

03

Play

The library keeps things tidy — and files travel wirelessly to wherever they're needed.

✓Sortable list with folders, search and preview; also visible in the iOS Files app
✓Mini player with playlist, shuffle and lock-screen controls — with cover, title and artist from the ID tag
✓Wi-Fi transfer: exchange files in the browser on your computer — QR code, access code, hotspot mode for hotel networks
✓ID tag editor for MP3s: title, artist, album, cover & co. — in the app and in the browser

Use cases

What people use jd.Edit for

🎙

Podcast & interview

Cut slips, tighten pauses, even out levels — pre-edit on the go and hand off a clean WAV.

🗒

Tidying voice memos

Bring memos over from the Apple app via the share sheet, keep the essentials, delete the rest — back into the library, neatly cut.

🎸

Music & demos

Capture ideas in stereo through a USB interface, cut out the best take, normalize, and send it to the band as ALAC or MP3.

📚

Lectures & talks

Trim long recordings down to the key points and archive them space-efficiently as AAC or MP3 — the size estimate shows the cost up front.

🔔

Snippets & sounds

Lift the perfect moment out of a recording and round it off with a fade-in and fade-out — for ringtones, samples or video projects.

🎧

Field recording

Capture atmospheres and quotes on location, review them on the device, and pull them onto your computer over Wi-Fi — no cable.

The jd.Codec MP3 encoder in numbers

+7.3 dB

average SNR lead vs. LAME (q0), 18 scores

116

round-trip checks against Apple's decoder

150×

real-time speed on Apple Silicon

SNR compared: jd.Codec vs. LAME

Overall SNR in dB at 128 kbit/s, identical input, decoded with Apple's decoder — higher is better. How it was measured — the full process →

Tech

The facts at a glance

Opens	WAV, AIFF, CAF, MP3, M4A/AAC, Apple Lossless, FLAC, Opus — mono and stereo
Exports	WAV, AIFF, CAF, Apple Lossless, AAC, MP3 (jd.Codec) · 16/24-bit or 32-bit float · dither
Recording	WAV 44.1 kHz / 24-bit · mono or stereo · internal and external inputs (USB, headset, Bluetooth)
Editing	Non-destructive · unlimited undo/redo · zero-crossing snap · 2 ms micro-fades
Tools	Delete, trim, silence, fade curves (7 presets), normalize (peak/RMS), loop playback
Files	Folders, search, rename, mini player · visible in the iOS Files app · Wi-Fi transfer in the browser
Languages	English and German — switchable without a restart
Pricing	Free download, one-time Pro unlock. No subscription, no ads.

Privacy is the default

jd.Edit sends nothing. No analytics, no account, no servers, no third-party SDKs. The only permission is the microphone — and the app asks only when you actually record.

Wi-Fi transfer stays on your own network too: it connects iPhone and computer directly, protected by an access code, and runs only while you keep it switched on.

Price

Start free. Unlock once.

The free tier is a complete app — nothing is artificially crippled. If you work with audio, get Pro: buy once, yours forever.

Free

$0

All import formats incl. FLAC and Opus
Waveform editor, zoom down to wave cycles
Delete, trim, silence, linear fades
Recording with the built-in microphone (mono)
File library, folders, mini player, preview
Export as WAV and AAC

Launch price

Pro — one-time unlock

$7.99 $12.99

for a limited time · no subscription, no further purchases

jd.Codec MP3 export — CBR, VBR (V0–V9), ABR, joint stereo, gapless
Freely shapeable fade curves with all seven presets
Normalize to peak level and RMS
USB interfaces & stereo recording with spectrum analyzer
Wi-Fi transfer including hotspot mode
24-bit and 32-bit export with dither
ID tag editor for MP3s — in the app and in the browser

FAQ

Frequently asked questions

No — deliberately not. jd.Edit is a sample editor like on the desktop: one file, one waveform, precise cuts. That's exactly what keeps the app fast, uncluttered and learnable in minutes.

Yes. Share the recording in Voice Memos and pick jd.Edit — the memo opens straight in the editor. The original in Voice Memos stays untouched.

Never. Every edit runs non-destructively on a working copy, with unlimited undo. A new file is only created on export — and even that asks before overwriting anything.

Yes. Anything iOS recognizes as an input is available in the app: built-in microphone, headset, Bluetooth hands-free and USB audio interfaces — the latter in stereo, too. Your choice is remembered.

Via Wi-Fi transfer: the app shows an address with a QR code, your computer opens it in the browser, and an access code protects the connection. Uploads and downloads including folder selection — and on hotel or guest networks it works directly over your Personal Hotspot.

No. jd.Edit is a free download, and the free tier stays fully usable — trim a voice memo, cut a ringtone, save as WAV or AAC. The Pro features are unlocked with a single purchase, forever: no subscription, no further purchases, no ads.

Ready for the first cut?

Get the waveform editor that turns your iPhone into a cutting desk — download for free, unlock Pro once, yours forever.

Download on the App Store

Free for iPhone · one-time Pro unlock · English & German