FIX Photopea "Not Enough RAM" Error in Chrome: 6 Fixes (2026)

You opened a 200MB PSD in Photopea and got hit with “Not enough RAM! (Need 3043MB )” while Task Manager swears you have 9GB free. The number is per-tab, not total. Photopea runs as a WebAssembly app inside one Chrome tab, and that tab can only grab a limited, contiguous block of memory. Other tabs already took it.

Fix 1: Free the Tab’s Memory Block Before Reopening

The fastest fix is giving Photopea room inside the ceiling it already has. Do this before you reopen the file, not after the error.

1. Open chrome://discards/ in a new tab.
2. Click Urgent Discard on every tab except Photopea and anything you are actively using.
3. Discarding 8–10 background tabs frequently frees 1–2 GB of address space.
4. Return to Photopea and reopen the file. The allocation that failed at “Need 3043MB” now has the contiguous block it asked for.

If the file still will not open, the single Photopea tab needs more than the browser will hand any one renderer. Move to Fix 2.

Fix 2: Open Photopea in Its Own Clean Window

A renderer competes for memory with the other tabs sharing its window and process pool. Isolating Photopea reduces that competition.

1. Close other tabs in the current window, or open a brand new Chrome window with Ctrl + N (Cmd + N on Mac).
2. Load photopea.com as the only tab in that window.
3. Open your file. With no neighbors claiming address space, the tab can grow into the headroom it needs.

This pairs well with Fix 1: discard background tabs first, then keep Photopea alone in its own window for the heavy edit.

Fix 3: Lower the File’s Memory Footprint

If a file truly needs more contiguous memory than any single tab gets, you have to shrink what it asks for. Photopea reports the figure it needs (“Need 3043MB”); the goal is to bring that number down.

1. Resolution: Image → Image Size and reduce the pixel dimensions if the canvas is larger than your final output needs.
2. Layers: Flatten or rasterize finished smart objects. Each live smart object holds its own buffer in memory.
3. Interpolation: Several users report that switching the resize interpolation from Bilinear to Nearest Neighbor clears the RAM warning on borderline files, because nearest-neighbor scaling allocates less working memory.
4. Re-open or re-run the operation. A 3GB request often drops below the ceiling after one of these.

Fix 4: Close Other Heavy Web Apps

Figma, Google Sheets with large datasets, video editors, and Miro each hold hundreds of megabytes to several gigabytes. While they are open, that memory is unavailable to Photopea’s tab.

1. Press Shift + Esc to open Chrome’s Task Manager.
2. Sort by Memory Footprint.
3. Close any tab over 500 MB that you do not need open during the edit.
4. Watch total Chrome memory drop, then reopen the Photopea file.

The single biggest offender is usually another browser-based design or spreadsheet app running in the background. One closed tab can free the exact block Photopea was missing.

Fix 5: Save Locally and Reload to Clear Heap Buildup

Long Photopea sessions accumulate memory that is not released between operations. Filters, history states, and undo buffers stack up inside the tab.

1. Save your work: File → Save as PSD (downloads to disk) so nothing is lost on reload.
2. Reload the Photopea tab with Ctrl + R (Cmd + R).
3. Re-open the saved PSD into a fresh tab with a clean heap.
4. The freed history and filter buffers give the next big operation more room.

For an all-day editing session, a reload every couple of hours prevents the slow creep that ends in a “Not enough RAM” wall.

Fix 6: Cut Your Project Into Smaller Documents

When a single file legitimately exceeds what one tab can hold, the structural fix is splitting it.

1. Separate a multi-artboard or multi-scene document into individual files per artboard.
2. Export finished sections as flattened PNG or JPG and remove them from the working file.
3. Work on one heavy section at a time rather than holding the entire composite in memory.

This is the right move for poster-size canvases, multi-page XD imports, and PSDs with dozens of high-resolution smart objects.

Why the Number Is Per-Tab, Not Total

Photopea is a WebAssembly application. Its image engine runs as compiled WASM inside one browser tab, and WebAssembly addresses memory through a single contiguous linear-memory region. Chrome caps how large that region can grow per renderer, and the cap sits well below your installed RAM.

So “Need 3043MB” is not a claim about your machine. It is the size of the contiguous block the engine tried to reserve and could not get. When background tabs have already fragmented and claimed the available address space, even a machine with gigabytes free reports the error. This is why the fixes above target other tabs and file size rather than buying more RAM. More RAM does not raise the per-tab ceiling; freeing the ceiling’s current occupants does.

Keep the Block Free Automatically

The manual version of Fix 1 is discarding tabs by hand every time you open a large file. SuperchargePerformance does it on a timer: idle tabs suspend with chrome.tabs.discard() after a set interval, releasing their memory back to the pool so Photopea’s tab can claim the contiguous block it needs.

Whitelist photopea.com so it is never suspended mid-edit, while everything else discards aggressively in the background. The badge shows a running estimate of the RAM recovered. It runs 100% locally, keeps no account, and the core suspension is free. As of June 2026 the live version is v1.4.3.

If Photopea is the only heavy tab you ever have open, the extension will not change much — at that point the answer is Fix 3 (shrink the file) or Fix 6 (split it). Suspension helps when Photopea competes with a wall of other tabs for the same block.

If the error survives every fix here and the file is truly poster-scale, treat it as a hard ceiling: split the document (Fix 6) or do the final composite in a desktop editor that addresses memory outside the browser sandbox.