LOOM · LATEST VERSION

LOOM 1.5.1

Released October 19, 2026. If the copy you are running shows an older number under LOOM › About LOOM, this is the one to download.

What's new in 1.5.1

Updating

Download, drag it into Applications, and replace the copy that is there. Your licence file is not touched — it lives outside the app, so an update never asks you to enter anything again.

Previous builds

Kept so an old build stays reachable at a permanent address. Unless you are pinning a specific version, take the latest above — it is the one both download buttons on the LOOM page give you.

• 1.5.0 October 18, 2026 DOWNLOAD · 27.6 MB
  Release notes

  New

  • The MIDI Mapping window. Choose View ▸ MIDI Mapping, press ⇧⌘M, or press OPEN MIDI MAPPING in the side panel to map a note or control change from your hardware to a control in LOOM. Your mappings work on top of the built-in layout, which keeps working underneath. See MIDI mapping.
  • To add a mapping, press + ADD MAPPING, choose the control in LOOM, then move or press the control on your hardware. The card shows what LOOM heard and proposes a type: BUTTON, SWITCH, CONTROLLER or RELATIVE. Press USE to add it.
  • Before you press USE, the card names any mapping of yours that the new one REPLACES, and any built-in note or controller number it OVERRIDES. ⌘Z and ⇧⌘Z undo and redo changes to the mapping table.
  • KEEP IN chooses where a mapping lives. RIG keeps it for every song on this machine, and THIS SONG saves it with the song, where it wins over a rig mapping on the same message.
  • The chooser's MAPPING ONLY group lets you map the built-in commands, NEXT TRACK and PREVIOUS TRACK, controls that act on the focused track, and NEXT PRESET and PREVIOUS PRESET for racks, effect slots and instruments.
  • The window's monitor lists every MIDI message LOOM receives and what it did with it: the control a mapping set, BUILT-IN, UNBOUND, REFUSED or WAITING. The table's STATE column says when a mapping is INERT in the song you have open, and why.
  • Built-in controller numbers for the mixer. On the command channel, CC 20 to 29 move each track's level, CC 40 to 49, 50 to 59 and 70 to 79 move its CUE, FX 1 and FX 2 sends, and CC 80 to 89 switch its mute. CC 102 switches the click on and off, CC 103 sets the click level, and CC 104 sets the master level. They need no mapping.
  • TAKEOVER, in the side panel's MIDI section, chooses how a knob or fader takes over a control that is somewhere else. PICKUP, the default, waits until your hardware reaches LOOM's value. JUMP moves the control straight to the hardware, and SCALE moves it toward the hardware so both reach the end of the range together.
  • While a control waits to pick up, a hollow ring on the knob or a dashed outline in the fader's track shows where your hardware is, and the notice row tells you which way to move it.
  • MIDI OUT, in the side panel, sends each track's state and the values of its faders, sends and mutes to the MIDI output you choose. Pads on your controller light to show what each track is doing, and motorised or on-screen faders follow LOOM. See MIDI feedback.
  • A TouchOSC layout for iPad, LOOM.tosc, from moonquakemedia.com/loom/touchosc. Its PADS page has every track's pads and the global commands, and its MIXER page has every track's level, sends and mute, plus the master and the click. It works with LOOM's default MIDI settings, so you have nothing to map.
  • The click is automatable. In the arrange view, add a lane on CLICK, under the MASTER bank, to switch the click on and off or move its LEVEL. See The arrange view.

  Changed

  • The app icon has new artwork, on LOOM's own black.
• 1.4.1 October 15, 2026 DOWNLOAD · 27.3 MB
  Release notes

  New

  • The BLOCK SIZE chip in the side panel's AUDIO DEVICE section chooses how many frames of audio LOOM processes at a time. It offers the sizes your audio device accepts, starts at 128, and marks sizes below 64 (not recommended). Changing it restarts the audio engine, so LOOM warns you first if any track holds a loop. LOOM remembers the size for this Mac, not in the song. See The BLOCK SIZE chip.
  • The first free loop of a song sets the tempo on an instrument track too. Record it with LENGTH set to free and both quantize settings set to immediate, and closing it sets the song's tempo from the length you played. The loop is retimed to the new tempo, so it plays as you played it. See The first free loop sets the tempo.

  Fixed

  • The compressor's, the gate's and the transparent drive's pictures left an empty band between the picture and the controls. The pictures now fill their panel, and the amp's drive picture is as tall as the tone stack beside it.
  • In the synth editor, the dot on a FILTER ENV or AMP ENV display could ride above the drawn envelope, or slide down a line that was not drawn when you let go of a note early. The dot now stays on the drawn shape and moves through each part at that part's rate.
• 1.4.0 October 12, 2026 DOWNLOAD · 27.2 MB
  Release notes

  New

  • Choose or replace an effect from the slot. In the effect drawer, the open slot has a small arrow button that opens the chooser in place of the effect's controls. The chooser lists every effect in groups (UTILITY, DYNAMICS, DRIVE & TONE, PITCH & MOD and SPACE), each with a line saying what it does, and you can type to search by name or by what the effect does. Choosing an effect for a filled slot replaces it in the same place in the chain, with a short fade rather than a click, and ⌘Z puts the previous effect back with all of its settings. See Choosing or replacing an effect.
  • Each slot in the effect drawer shows a small picture of its effect and a short name, such as PARA EQ, COMP or TRANSP. An empty slot reads + ADD and opens the chooser.
  • The effect drawer works from the keyboard. Each slot is its own Tab stop, the open slot's arrow button is the stop after it, and every effect in the chooser is a Tab stop after the search field. See The keyboard.
  • You can add the tuner to a bus. There it listens to what is sent to that bus.
  • The gain stage, the transparent drive, the amp, the cab, the delay, the reverb, the chorus, the octave and the harmony each show a picture above their controls, and the picture changes as you move a control.
  • On the cab's picture, drag the LOW CUT and HIGH CUT handles to move the cuts. The knobs below move with them.
  • Live readings from your signal while you play:
    • The compressor shows its gain reduction on a GR bar, and the last four seconds of the level going in and coming out.
    • The noise gate shows the last two seconds of the level going in and coming out, with a strip that shows the gate opening and closing.
    • The gain stage measures how the left and right sides relate, and reads OUT OF PHASE when they would cancel in mono.
    • The octave names the note it is following, such as HEARD A2 · 110 Hz.
    • The harmony's keyboard shows the note it is holding and lights each voice on the note it is singing.
    • The reverb's tail glows with the room's level at the output, and the chorus shows where each voice is right now.
    • When there is nothing to measure, because the slot is bypassed, the signal is silent or no audio device is open, the reading is left empty and says so, for example NO SIGNAL.
  • The synth editor has a full-screen layout. When the window is large enough, such as full screen on a 16-inch MacBook Pro, every control is on one page in four columns that follow the signal: Sources, Filter, Amp and voice, and Modulation. See Instrument tracks.
  • The synth's displays follow what it is playing. A green light after a display's label marks a live picture, and beside it is a value no knob shows, such as the cutoff the filter is using, or the envelope's stage and level.
  • The synth has stepped knobs for named settings, such as an LFO's SHAPE or the arpeggiator's RATE. On a stepped knob, the arrow keys move one setting and Page Up and Page Down move four.
  • The CPU readout on the bottom rail now works. It shows how much of each block's time LOOM uses to process its audio, as p50 and p99 over the last 5 seconds, and turns amber when p99 passes 80%. See The bottom rails.

  Changed

  • The effect controls are redesigned. A control that runs through a range is a knob, WET and DRY are two knobs under MIX, a two-state setting is a chip with its name and a light, and longer lists such as the delay's DIVISION and the harmony's SCALE are grids of cells.
  • DROPOUTS is no longer on the bottom rail. Dropouts and near misses are written to the session log, which you open with LOG, and CPU turning amber warns you while you play.
  • A new delay or reverb opens with WET at 50%, so you hear it as soon as you add it. It opened at 0%.
  • The reverb's room is louder. At WET 100%, a medium room with a 2-second DECAY comes out at about the level of a sustained sound you play into it. When you open a song, an effect preset or a rack saved with an earlier version, LOOM halves each reverb's WET, including its automation, so it sounds as it did. A song saved with this version and opened in an earlier one plays its reverbs about 6 dB quieter.

  Fixed

  • New Song left the loops on instrument tracks in the new song, and when only instrument tracks held loops it gave no warning. It now clears them, and the warning before New Song, Open Song and a device change lists an instrument track that holds a loop by its label, such as I1. See Dialogs.
  • An EQ on an instrument track or a bus drew no spectrum behind its curve. It now draws the signal there, as it does on tracks, inputs and the master.
• 1.3.0 October 4, 2026 DOWNLOAD · 26.4 MB
  Release notes

  New

  • The tuner. Add it to a track, an input or the master chain. It reads a single note on a STROBE or NEEDLE display, against a REFERENCE from 430 Hz to 450 Hz, and with STRINGS on AUTO it shows every string of a strum against the TUNING you choose, such as STANDARD, DROP D, DADGAD, BASS 4 or UKULELE. MUTE silences the chain from the tuner's slot on while you tune. See The mixer.
  • The transparent drive, an overdrive pedal. It has GAIN, CLIP (LIGHT, MEDIUM or FULL), BASS, TREBLE, a VOICE switch for GUITAR or BASS, and WET and DRY.
  • The harmony, which adds up to two voices to what you sing or play. Set the song's KEY and SCALE, then each voice's interval and level with VOICE 1, LEVEL 1, VOICE 2 and LEVEL 2. DOUBLE adds a double of each voice, SPREAD places the voices across the stereo field, and SAFE keeps them on the notes of the key's pentatonic scale.
  • The gain, a level trim from -inf dB to +24 dB with INVERT L, INVERT R and MONO switches.
  • MOD DEPTH and MOD RATE on the delay and the reverb. On the delay they make the repeats drift in pitch like a tape delay. On the reverb they thicken the tail and remove the metallic ring of long decays. Both are off at a MOD DEPTH of zero, and a delay or reverb saved before this version opens with them off, so it sounds as it did.
  • The synth's arpeggiator has NOTES and STRUM. NOTES sets how many of the held notes each step plays: 1, 2, 3, 4 or ALL. STRUM spreads the notes of a step apart in time. NOTES acts when the synth's MODE is POLY. See Instrument tracks.
  • A sampler preset now saves its sample. Loading one copies the sample into the song's folder and loads it with the preset's markers, LOOP and STRETCH. To give a preset to another player, send the whole .loompreset folder; REVEAL IN FINDER in the preset row's ··· menu finds it.
  • New factory presets:
    • Sampler: Acoustic Drums on C3, High Voice, Strat Chop and Strat Note, each with its sample.
    • Synth: Chord Stabs, Random Pairs, 2 Note Strum and Poly Arp Side Chain.
    • Delay: Mod Eighths.
    • Reverb: Long Ambient Mod.

  Changed

  • A sampler preset saved by an earlier version has no sample, so loading it keeps the track's own sample. To add one, load the preset on a track that has the sample you want and press SAVE with the same name. An earlier version of LOOM cannot read a sampler preset that holds a sample.

  Fixed

  • After you moved the effect drawer from an EQ slot to an empty slot, the EQ's column headings (TYPE FREQ GAIN Q ON) stayed drawn behind the ADD AN EFFECT list. The list now draws on its own.
• 1.2.3 October 3, 2026 DOWNLOAD · 13.5 MB
  Release notes

  New

  • MIDI IN lanes in the arrange view. When several instrument tracks listen to the same MIDI channel, a MIDI IN lane hands the channel from one track to another as the arrangement performs, without recording anything and without changing any track's input setting. Add one from the card's SONG bank, then click the lane at a bar and choose the track that plays from there. The lane works while SHARED MIDI INPUT is ONE AT A TIME. See MIDI IN lanes.

  Fixed

  • CLEAR on an INPUT, PRESET, PATTERN or RACK PRESET lane removed none of its nodes. It now removes them all in one edit, and one ⌘Z brings them back.
  • Pressing a region or a lane in the arrange view could make LOOM quit unexpectedly when the press changed the focused track and the view redrew its rows. The press now completes.
• 1.2.2 October 2, 2026 DOWNLOAD · 13.4 MB
  Release notes

  Fixed

  • Choosing a device in the MIDI INPUT list on an instrument track's INST tab could make LOOM quit unexpectedly. Choosing a device now sets the track's input.
• 1.2.1 October 2, 2026 DOWNLOAD · 13.4 MB
  Release notes

  New

  • SHARED MIDI INPUT, under MIDI on the side panel's SONG tab, decides what happens when instrument tracks listen to inputs that overlap. ONE AT A TIME gives the input to one track, and ALL TOGETHER gives it to every one of them, so one keyboard plays them layered. The setting is saved with the song. See Instrument tracks.

  Fixed

  • During a performance, a REC or DUB region on an instrument track did not take the MIDI input, so the instrument track you last focused kept your keyboard while another track recorded. The region's track now takes the input about 40 milliseconds before the region starts, so a downbeat you play slightly early is recorded on the new track.
  • Pressing ⌘Z to undo a region you had just drawn could make LOOM quit unexpectedly. Undo now removes the region.
• 1.2.0 October 1, 2026 DOWNLOAD · 13.4 MB
  Release notes

  New

  Instrument tracks

  • Instrument tracks. They sit beside the audio tracks, play LOOM's own instruments from a MIDI controller, and loop what you play as MIDI notes. Each one has the same ring, fader, STOP, UNDO, REDO and CLEAR as an audio track. See Instrument tracks.
  • KIND on the track's INST tab chooses what the track plays: SYNTH, DRUMS or SAMPLER. If you change it, the loop keeps its notes and plays them on the new instrument.
  • MIDI INPUT on the INST tab chooses the device and the channel each instrument track listens to. When tracks share an input, the track you most recently focused or pressed record on hears it. The MIDI IN card shows which track holds each device.
  • LAYOUT, at the right end of the globals row, chooses how the looper shows the tracks: ROWS puts the audio tracks in the top row and the instrument tracks under them, and BANKS shows one bank at a time behind the AUDIO and INST tabs.
  • Record quantize. GRID, STRENGTH and SWING on the INST tab move the notes you record toward a grid. They act on the loop as it plays, so you can tighten a take after you record it, and STRENGTH at OFF plays it as you played it.
  • Each instrument track has its own LAUNCH QUANTIZE, STOP QUANTIZE, REC COUNT-IN, LENGTH and REC ACTION on the INST tab. Until you change them, they follow the GLOBAL panel.
  • Each instrument track has its own octave in the MIDI command map, with the same controls as an audio track's: the ring button, overdub, undo, redo, stop, clear and play. See MIDI mapping.

  The instruments

  • The editor dock. OPEN EDITOR on the INST tab opens the instrument's editor across the bottom of the looper. The dock follows the focused instrument track, and PIN keeps it on one track.
  • The synth, with oscillators, a filter, an amp, LFOs, a VOICE section with glide and unison, and an arpeggiator. It comes with factory presets, and you can save your own.
  • The drum machine, with its parts, kits, and a pattern grid on the PATTERN tab. The grid is the track's loop: a hit you play appears in it, and a step you add plays, even while the loop is playing. Load a factory pattern or save your own.
  • The sampler. Press LOAD FILE… to load an audio file and play it across the keys. Choose SLICE to chop it into slices and play one slice on each key. LOOM chops the sample by its transients, and you can add, move and delete chops by hand.
  • In the drum editor, press a part to hear it. In the sampler's SLICE mode, press a slice to hear it. Neither press is recorded.

  The mixer, the arrange view and recording

  • The mixer's INSTRUMENTS bank, on key 2, has a strip for each instrument track with PAN, a fader, MUTE, SOLO and a slot grid for effects. See The mixer.
  • In the arrange view, each instrument track has its own row and takes REC, DUB and PLAY regions. A PLAY region marks each note of the track's loop.
  • Automation lanes for instrument tracks: INPUT, PRESET, PATTERN on a drum track, and the instrument's own controls, such as the synth's CUTOFF. See The arrange view.
  • To record an instrument onto an audio track, open the audio track's TRACK panel and switch on the instrument's row under INSTRUMENTS · AFTER FX, BEFORE FADER. The take lines up with the loop exactly.
  • Tick an INST row in Record setup and RECORD writes that instrument track to its own file, such as Instrument 1.wav. An instrument track can also go in a PLAYBACK group.

  Changed

  • The MIDI command map has a new layout with room for the instrument tracks. Track 1 starts at note 0, the instrument tracks start at note 72, and the globals sit at notes 120 to 125. If your controller is set up for LOOM 1.0, choose 1.0 layout with MIDI MAP in the GLOBAL panel.
  • DROPOUTS on the bottom rail counts the dropouts macOS reports. It used to read 0 whatever happened. Now it turns amber after a dropout and stays amber until you click it, and the click opens the session log at the first dropout. See The bottom rails.
  • With PING PONG on, the delay's repeats die away evenly as they move from side to side. Before, a centred sound's repeats on the right were much quieter than the ones on the left.
  • ⌥-click or Delete on a control whose range runs from a negative value to the same positive value, such as the amp's PRESENCE, sets it to 0 rather than to its default.
  • A fader's meter is drawn inside the fader's slot, with the handle riding in it. The looper's faders have no scale: read the level from the value.
  • The ring's WAIT RETRIG state is now called WAIT TOP.
  • Numbers that name a track, an input or a slot have no leading zero: TRACK 1, IN 2, and slots 1 to 8.
  • The master strip's SUM OF line counts every strip the main mix adds together, not only the loop tracks.
• 1.1.3 September 25, 2026 DOWNLOAD · 10.8 MB
  Release notes

  New

  • The ring has a WAIT DUB state. When REC ACTION is OVERDUB and a first take's close waits for the bar, the ring reads WAIT DUB, drawn as two sweeps with the wedge. See the track strips.

  Changed

  • WAIT SWAP is drawn with two dashed sweeps, so it stays distinct from WAIT DUB.

  Fixed

  • While a track records its first take, the ring's small arrowed word reads where the next press takes the loop, as set by REC ACTION: → PLAY, → OVERDUB or → STOP. It read → RECORD.
  • With REC ACTION on OVERDUB or STOP, a first take whose close waited for the bar showed WAIT PLAY, though the track was not going to play. The ring now shows WAIT DUB or WAIT STOP.
  • The at-risk warning said "Still playing" when every track it listed was stopped. Its banner now reads "Every track is stopped. Nothing changes until you choose.", and its cancel button reads Cancel instead of Keep playing - cancel. See dialogs.
  • In a song you had just reopened, a screen reader heard no length for a loop until you played it. It now hears the loop's length.
  • In the arrange view, a screen reader could name a region by its row instead of its track, so a region below an automation lane was announced as the wrong track.
• 1.1.2 September 21, 2026 DOWNLOAD · 8.1 MB
  Release notes

  New

  • MUTE and SOLO on every strip in the looper view. They are the same controls as the mixer's track strips, and either surface shows what the other one did. See the track strips.
  • An S button that clears every solo, on tracks and on effects buses. It is in the looper view's globals row, the arrange view's header and the mixer's header, and it is solid amber while anything is soloed.
  • A strip silenced by another track's or bus's solo blinks its MUTE in blue and greys its meter, in the looper view and in the mixer. A track you muted yourself does not blink.
  • M, S and ⌥S mute and solo the focused track in the looper view, as they already did in the mixer. See keyboard shortcuts.

  Changed

  • The ARRANGEMENT readout is gone from the arrange view's header, and the S button takes its place.
• 1.1.1 September 20, 2026 DOWNLOAD · 8.1 MB
  Release notes

  Changed

  • The GLOBAL panel's quantize settings are named LAUNCH QUANTIZE and STOP QUANTIZE, the same as on the TRACK panel. They were LAUNCH Q and STOP Q. See the side panel.
  • The GRAVITY readouts are gone from the GLOBAL panel.
• 1.1.0 September 20, 2026 DOWNLOAD · 8.1 MB
  Release notes

  New

  • Automation lanes in the arrange view. A lane changes one control while the arrangement performs: an effect slot's bypass, a strip's LEVEL, PAN or MUTE, an effect's controls, or which preset or rack a chain loads. Only a performance moves a lane. See the arrange view.
  • New effects: the noise gate, the chorus, the octave, the cab and the amp. See the mixer.
  • Racks and presets. Save a whole effect chain as a rack, or one effect's settings as a preset, from the RACK and PRESET bars in the effect drawer, and load them on any strip. LOOM ships factory racks and presets alongside your own.
  • The delay's SYNC setting. Choose a DIVISION and LOOM sets the delay time from the song's tempo.
  • Undo for effect chains. With the keyboard in the effect drawer or on a slot grid, ⌘Z and ⇧⌘Z undo and redo adding, removing, moving and bypassing effects, loading a rack or preset, and each drag on a control.
  • Move an effect to another slot in the effect drawer: drag it, or press M, move with the arrow keys and press M again.
  • Performance recording. The RECORD button in the top bar writes one WAV file for each stream you tick in File ▸ Record Setup…, into a new folder in your recordings folder. If the disk falls behind, LOOM fills the gap with silence and lists it in Markers.txt. See the top bar.
  • Groups. On the mixer's MASTER bank, the ROUTING page sums several inputs, or several loop tracks and buses, into one stereo file when you record.
  • Right-click a region in the arrange view, or Control-click it, to change its verb from its menu.
  • The arrange view scrolls vertically when its rows are taller than the window, by scrollbar, wheel or two-finger swipe.

  Changed

  • The VERB row and the V key choose only what the next region fires. The VERB row no longer changes the selected region; use the region's menu for that.
  • The panel toggle in the top bar, left of the VIEW switcher, shows and hides the side panel on every view. It replaces the HIDE PANEL button in the globals row.
  • ALL START, ALL STOP, ALL CLEAR and each track's CLEAR keep their word when they cannot act, and are drawn with a dashed border instead. They used to change to words such as NO LOOPS and NOTHING TO CLEAR.
  • Track meters, in the looper view and the mixer, and the master meter have two bars, left and right.
  • Labels on buttons, tabs and settings, and every number, are set in JetBrains Mono. Text you read as language is set in Archivo.

  Fixed

  • After an overdub, the take under it dropped out of the right channel. Both layers now play on both channels.
  • Effects on the master strip did nothing when your main mix was on outputs other than 1 and 2. They now process the main mix wherever you send it.
  • The metronome click went to outputs 1 and 2 even when your main mix was on other outputs, so you could not hear it. It now follows the main mix.
  • Save As… moved the recorded audio out of the song you saved from, so that song opened with silent tracks. It now copies the audio and leaves the original song as it was. See where your recordings live.
  • If you opened a song, cleared its tracks and saved it, the takes came back the next time you opened it. A track you clear now saves as empty.
  • In a song you had just opened, the effects buses, their effects and the cue were silent until you moved a fader or changed another setting, so the first move seemed to switch an effect on. They now play as soon as the song opens.
  • Switching a delay back in after a bypass clicked one delay time later, and adding a reverb or switching it back in could click. Neither clicks now.
  • In an arrangement, a DUB region straight after another DUB region played instead of recording a new layer. Each DUB region now records its own layer.
  • Selecting or dragging a long region in the arrange view scrolled the view back to the region's start, so you could not work on its right edge. The view now stays put when the region is already on screen.
• 1.0.0 September 9, 2026 DOWNLOAD · 6.8 MB
  Release notes

  This is the first release of LOOM.

  What is in it

  • The looper view. Each track has a strip with a ring that records, closes, overdubs and plays its loop, and the row above the strips starts, stops and clears every track at once. See the track strips.
  • The arrange view. Draw regions that record, overdub or play on the bar they start on, then press PERFORM FROM TOP to play the song. See the arrange view.
  • The mixer. Faders, pan, mute and solo for every loop track and input, the CUE, FX 1 and FX 2 buses, and a choice of outputs. See the mixer.
  • Insert effects. Every strip has eight effect slots, with an EQ, a compressor, a delay and a reverb to put in them.
  • MIDI control on a fixed set of notes, on the channel you choose. See MIDI mapping.
  • Keyboard shortcuts for every view. See keyboard shortcuts.
  • Your songs and takes are files on your own disk, in ~/Music/LOOM. See where your recordings live.
  • LOOM makes no network calls, and checks its licence on your Mac with no account and no activation server. See your licence.
  • The manual ships inside LOOM. Choose File ▸ User Guide to open it.