About ImgSmith
ImgSmith is a small collection of image tools that run entirely in your browser: a compressor that works to a target file size, a batch resizer, a watermarking tool, a format converter, and a set of social crop presets. There is also a full layered editor at /editor/ for work that presets cannot cover.
Why the processing is local
Most online image tools upload your file to a server, process it there, and send back a result. That means a copy of the file exists on hardware you do not control, under a retention policy you probably have not read. For a product photo that may be acceptable. For an ID scan, a medical document, a contract, or an unpublished design, it is an unnecessary risk.
The tools here decode the image with the browser's own APIs, do the work in the tab, and hand you a new file. There is no upload step and no account. Closing the tab discards the working data. The practical trade-off is speed: a browser tab has less computing power than a server, so very large batches take longer. The 50 MB per-file and 40-megapixel limits exist to keep the tab from running out of memory, not to reserve capacity for a paid plan.
The editor is a modified miniPaint fork
The full editor is based on miniPaint, an open-source image editor released under the MIT License. The upstream copyright notice is retained in the source, as the license requires. This site's version is modified: the interface, the integration with the surrounding tools, and the browser-side processing pipeline are not identical to upstream.
MIT is a permissive license. It allows use, modification, and redistribution, provided the copyright notice and permission notice are preserved. It does not come with a warranty. If you want the unmodified editor, use the upstream repository. If you want to inspect how this version differs, the source is part of the site's codebase.
How the guides are written
The guides are written to answer a specific task, not to fill a keyword page. Each one is checked against the tool or the file behavior it describes: the control names, limits, and output rules should match what the site actually does. When a tool changes, the affected guide is updated and its date is revised.
The editorial rules are deliberately narrow:
- No invented benchmarks, statistics, or citations. If a number is a rule of thumb, it is labeled as one.
- No promise that a tool can do something it cannot, including recovering detail from an upscale or compressing a PNG losslessly to an arbitrary size.
- Limits are stated next to the procedure, not buried in a footnote.
- Corrections are made in the article rather than in a comment thread. If something is wrong, the page changes.
If a guide and the tool disagree, the tool is the source of truth and the guide is the bug. Report it through the contact page.
How the site is funded
The site is supported by advertising. There is no paywall, no account, and no export watermark on your output. Advertising choices are explained in the privacy policy and the cookie policy. Because images are never uploaded, there is no server-side copy of your files for an advertiser or anyone else to access.
Contact
Questions, corrections, and bug reports go to 2961884811@qq.com. The contact page explains what to include so a report can be reproduced.