Split bulk image convert into per-output-format slugs (JPG, PNG, WebP) because users search the destination suffix, not a codec picker. | Dev Logs

Date: 2026-09-03 15:30 Summary: Split bulk image convert into per-output-format slugs (JPG, PNG, WebP) because users search the destination suffix, not a codec picker. Visibility: people

[question] bulk-convert-images-to-webp，用户一般不熟悉格式，需要把区分不同的批量转换格式slug

[try to solve]

Context

The bulk/batch independent-tool list had one convert URL: bulk-convert-images-to-webp, with JPEG/PNG/AVIF as on-page chips. That assumes the visitor already knows WebP and will pick another codec. The user said people generally do not know formats; they search for a result file they recognize (usually JPG, sometimes PNG).

Process

1. Re-read §3.3 H: split only when job/rules differ, not for synonym labels.
2. Treat output format as the job users name in search (to jpg, to png, to webp). Direction pairs (png to jpg, heic to jpg) share the same output rules → absorb onto the destination page.
3. Write distinct IG/Rules per page so the three URLs are not title-only clones:
   • JPG: flatten alpha with a shared matte; .jpg extension; quality for forms/email.
   • PNG: keep alpha; warn that files often grow versus JPEG; first frame of GIF.
   • WebP: lossy + optional alpha; clients that reject WebP; size vs PNG.
4. AVIF stays a future own slug (bulk-convert-images-to-avif) because it is even less familiar and slow — not a chip on WebP.
5. Drop a hub slug bulk-image-converter with a format dropdown.

Updated: authority note docs/seo/keywords/bulk-batch/2026-09-03-bulk-vs-batch-tool-split.md §0.1, README P0 table, keyword pool rows, tracker log, analysis canvas.

Root cause / analysis

A single WebP-first converter hides the query people actually type. A dropdown does not fix that: the H1 and default output would still be WebP. Separate slugs make the landing task “get a ZIP of JPGs” with no format literacy required. Split is allowed because failure modes differ (matte vs keep-alpha vs WebP client support), not because JPEG and JPG are two words.

Solution

Independent convert URLs (all bulk):

Ship order among convert: JPG first. No output-format switcher on any of these pages; sibling formats are related links.

Notes / boundaries

• No work-tasks/ this turn.
• Do not also ship png-to-jpg or jpeg duplicate bulk URLs.
• zh titles should use 转 JPG / 转 PNG, not force the English codec names.

[actions]

• Updated docs/seo/keywords/bulk-batch/*, pool, tracker, canvas