tooltd/gguf-tensor-transfer

GGUF Tensor Transfer

Stream any tensors you pick from one GGUF file (A — donor) into another (B — base) to create a new file (C). Selected tensors are copied byte-exact from A; everything else is streamed from B — no re-quantization, no full-file RAM load.

👉 Github gguf-tensor-transfer

Features

• Per-tensor selection — the table shows every tensor with its quant type and size in A, B, and the resulting C. Click ✓ to select, click column headers to sort, search box filters by name.
• Append donor-only tensors — tensors that exist only in A (e.g. an extra transformer block like the MTP blk.64 of Qwen3.5/3.6/3.8) are listed at the bottom and can be added to C; the matching metadata KVs (block_count, nextn_predict_layers) are synced automatically.
• Shape-safe — a tensor is taken from A only when its dimensions match; otherwise B's copy is kept and a ⚠ warning is shown.
• Extract → donor GGUF — load just B (Load B (extract only)), select tensors, and export them to a small standalone donor GGUF.
• Safe write — progress bar with live MB/s, cancel removes the partial file, and a quick verification runs after the write.