課題
Users who routinely process small data files were forced through SaaS upload flows that demanded accounts, leaked sensitive data to third-party servers, and broke under offline conditions.
Frontend · Web Apps
CSV分割、JSON整形、PDF編集、画像背景除去など多数のファイル操作をブラウザ内で実行 — 完全クライアント側処理、アップロード・登録・トラッキング不要。
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Users who routinely process small data files were forced through SaaS upload flows that demanded accounts, leaked sensitive data to third-party servers, and broke under offline conditions.
Engineered every tool — CSV splitter, JSON formatter, PDF editor, background remover, image converter — as a fully client-side module. Heavy parsing pushed to WebAssembly workers, zero analytics in the tool path, and a unified toolkit shell delivered through Next.js with edge caching.
What we delivered
This engagement combined several of ConfiaTech's core capabilities. Each contributed a specific outcome to the final product.
Next.js、React、Angular、Astro、WordPress。瞬時にロードする精緻なUI。
リサーチ駆動のデザインシステム。
自動テストスイート、回帰カバレッジ、手動QAサイクルで、あらゆるブラウザとデバイスでリリースを安定させます。
パイプライン、コンテナオーケストレーション、Infrastructure-as-Codeにより、すべてのコミットを可観測性付きで安全に本番へ届けます。
How we delivered it
Every case study on this site follows the same delivery spine — the four-phase process we have refined across many production engagements.
Stakeholder interviews, technical audit, success metrics, phased roadmap.
User research, design systems, interactive prototypes approved before code.
Two-week sprints, weekly demos, automated testing, continuous deployment.
Production rollout, observability, incident response, feature evolution.
Every contributor on the engagement had at least five years of production experience. No learning on the client dime.
Outcomes — not deliverables — drive the roadmap. Weekly demos report progress against the metric, not against the backlog.
Production observability, incident playbooks, and handoff documentation ship with every release.
The same engineers who built the product support and evolve it. Institutional knowledge stays inside the engagement.
Walk us through your problem. Within one business day a expert engineer will recommend the engagement model, team composition, and timeline that maps closest to this case study.
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